Move most documentation to doc/, update README ENGINE-237
authorDamiano Boppart <damiano@pep-security.net>
Mon, 28 Aug 2017 14:32:46 +0200
branchENGINE-237
changeset 2008f93bf1fac875
parent 2000 83b699f9fe24
child 2009 7da0d79c6141
Move most documentation to doc/, update README
CC_BY-SA.txt
LICENSE.txt
README-OSX.md
README.md
README.txt
TODO.txt
build-config/common.conf
doc/README-OSX.md
doc/README.txt
doc/macports_env.sh
doc/misc/cc-header.md
doc/misc/gpl-header.txt
macports_env.sh
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    2.37 -  For example, if you distribute copies of such a program, whether
    2.38 -gratis or for a fee, you must pass on to the recipients the same
    2.39 -freedoms that you received.  You must make sure that they, too, receive
    2.40 -or can get the source code.  And you must show them these terms so they
    2.41 -know their rights.
    2.42 -
    2.43 -  Developers that use the GNU GPL protect your rights with two steps:
    2.44 -(1) assert copyright on the software, and (2) offer you this License
    2.45 -giving you legal permission to copy, distribute and/or modify it.
    2.46 -
    2.47 -  For the developers' and authors' protection, the GPL clearly explains
    2.48 -that there is no warranty for this free software.  For both users' and
    2.49 -authors' sake, the GPL requires that modified versions be marked as
    2.50 -changed, so that their problems will not be attributed erroneously to
    2.51 -authors of previous versions.
    2.52 -
    2.53 -  Some devices are designed to deny users access to install or run
    2.54 -modified versions of the software inside them, although the manufacturer
    2.55 -can do so.  This is fundamentally incompatible with the aim of
    2.56 -protecting users' freedom to change the software.  The systematic
    2.57 -pattern of such abuse occurs in the area of products for individuals to
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    2.59 -have designed this version of the GPL to prohibit the practice for those
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    2.63 -
    2.64 -  Finally, every program is threatened constantly by software patents.
    2.65 -States should not allow patents to restrict development and use of
    2.66 -software on general-purpose computers, but in those that do, we wish to
    2.67 -avoid the special danger that patents applied to a free program could
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    2.70 -
    2.71 -  The precise terms and conditions for copying, distribution and
    2.72 -modification follow.
    2.73 -
    2.74 -                       TERMS AND CONDITIONS
    2.75 -
    2.76 -  0. Definitions.
    2.77 -
    2.78 -  "This License" refers to version 3 of the GNU General Public License.
    2.79 -
    2.80 -  "Copyright" also means copyright-like laws that apply to other kinds of
    2.81 -works, such as semiconductor masks.
    2.82 -
    2.83 -  "The Program" refers to any copyrightable work licensed under this
    2.84 -License.  Each licensee is addressed as "you".  "Licensees" and
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    2.86 -
    2.87 -  To "modify" a work means to copy from or adapt all or part of the work
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    2.91 -
    2.92 -  A "covered work" means either the unmodified Program or a work based
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    2.95 -  To "propagate" a work means to do anything with it that, without
    2.96 -permission, would make you directly or secondarily liable for
    2.97 -infringement under applicable copyright law, except executing it on a
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   2.100 -public, and in some countries other activities as well.
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   2.102 -  To "convey" a work means any kind of propagation that enables other
   2.103 -parties to make or receive copies.  Mere interaction with a user through
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   2.106 -  An interactive user interface displays "Appropriate Legal Notices"
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   2.112 -the interface presents a list of user commands or options, such as a
   2.113 -menu, a prominent item in the list meets this criterion.
   2.114 -
   2.115 -  1. Source Code.
   2.116 -
   2.117 -  The "source code" for a work means the preferred form of the work
   2.118 -for making modifications to it.  "Object code" means any non-source
   2.119 -form of a work.
   2.120 -
   2.121 -  A "Standard Interface" means an interface that either is an official
   2.122 -standard defined by a recognized standards body, or, in the case of
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   2.126 -  The "System Libraries" of an executable work include anything, other
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   2.133 -(kernel, window system, and so on) of the specific operating system
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   2.135 -produce the work, or an object code interpreter used to run it.
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   2.137 -  The "Corresponding Source" for a work in object code form means all
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   2.150 -  The Corresponding Source need not include anything that users
   2.151 -can regenerate automatically from other parts of the Corresponding
   2.152 -Source.
   2.153 -
   2.154 -  The Corresponding Source for a work in source code form is that
   2.155 -same work.
   2.156 -
   2.157 -  2. Basic Permissions.
   2.158 -
   2.159 -  All rights granted under this License are granted for the term of
   2.160 -copyright on the Program, and are irrevocable provided the stated
   2.161 -conditions are met.  This License explicitly affirms your unlimited
   2.162 -permission to run the unmodified Program.  The output from running a
   2.163 -covered work is covered by this License only if the output, given its
   2.164 -content, constitutes a covered work.  This License acknowledges your
   2.165 -rights of fair use or other equivalent, as provided by copyright law.
   2.166 -
   2.167 -  You may make, run and propagate covered works that you do not
   2.168 -convey, without conditions so long as your license otherwise remains
   2.169 -in force.  You may convey covered works to others for the sole purpose
   2.170 -of having them make modifications exclusively for you, or provide you
   2.171 -with facilities for running those works, provided that you comply with
   2.172 -the terms of this License in conveying all material for which you do
   2.173 -not control copyright.  Those thus making or running the covered works
   2.174 -for you must do so exclusively on your behalf, under your direction
   2.175 -and control, on terms that prohibit them from making any copies of
   2.176 -your copyrighted material outside their relationship with you.
   2.177 -
   2.178 -  Conveying under any other circumstances is permitted solely under
   2.179 -the conditions stated below.  Sublicensing is not allowed; section 10
   2.180 -makes it unnecessary.
   2.181 -
   2.182 -  3. Protecting Users' Legal Rights From Anti-Circumvention Law.
   2.183 -
   2.184 -  No covered work shall be deemed part of an effective technological
   2.185 -measure under any applicable law fulfilling obligations under article
   2.186 -11 of the WIPO copyright treaty adopted on 20 December 1996, or
   2.187 -similar laws prohibiting or restricting circumvention of such
   2.188 -measures.
   2.189 -
   2.190 -  When you convey a covered work, you waive any legal power to forbid
   2.191 -circumvention of technological measures to the extent such circumvention
   2.192 -is effected by exercising rights under this License with respect to
   2.193 -the covered work, and you disclaim any intention to limit operation or
   2.194 -modification of the work as a means of enforcing, against the work's
   2.195 -users, your or third parties' legal rights to forbid circumvention of
   2.196 -technological measures.
   2.197 -
   2.198 -  4. Conveying Verbatim Copies.
   2.199 -
   2.200 -  You may convey verbatim copies of the Program's source code as you
   2.201 -receive it, in any medium, provided that you conspicuously and
   2.202 -appropriately publish on each copy an appropriate copyright notice;
   2.203 -keep intact all notices stating that this License and any
   2.204 -non-permissive terms added in accord with section 7 apply to the code;
   2.205 -keep intact all notices of the absence of any warranty; and give all
   2.206 -recipients a copy of this License along with the Program.
   2.207 -
   2.208 -  You may charge any price or no price for each copy that you convey,
   2.209 -and you may offer support or warranty protection for a fee.
   2.210 -
   2.211 -  5. Conveying Modified Source Versions.
   2.212 -
   2.213 -  You may convey a work based on the Program, or the modifications to
   2.214 -produce it from the Program, in the form of source code under the
   2.215 -terms of section 4, provided that you also meet all of these conditions:
   2.216 -
   2.217 -    a) The work must carry prominent notices stating that you modified
   2.218 -    it, and giving a relevant date.
   2.219 -
   2.220 -    b) The work must carry prominent notices stating that it is
   2.221 -    released under this License and any conditions added under section
   2.222 -    7.  This requirement modifies the requirement in section 4 to
   2.223 -    "keep intact all notices".
   2.224 -
   2.225 -    c) You must license the entire work, as a whole, under this
   2.226 -    License to anyone who comes into possession of a copy.  This
   2.227 -    License will therefore apply, along with any applicable section 7
   2.228 -    additional terms, to the whole of the work, and all its parts,
   2.229 -    regardless of how they are packaged.  This License gives no
   2.230 -    permission to license the work in any other way, but it does not
   2.231 -    invalidate such permission if you have separately received it.
   2.232 -
   2.233 -    d) If the work has interactive user interfaces, each must display
   2.234 -    Appropriate Legal Notices; however, if the Program has interactive
   2.235 -    interfaces that do not display Appropriate Legal Notices, your
   2.236 -    work need not make them do so.
   2.237 -
   2.238 -  A compilation of a covered work with other separate and independent
   2.239 -works, which are not by their nature extensions of the covered work,
   2.240 -and which are not combined with it such as to form a larger program,
   2.241 -in or on a volume of a storage or distribution medium, is called an
   2.242 -"aggregate" if the compilation and its resulting copyright are not
   2.243 -used to limit the access or legal rights of the compilation's users
   2.244 -beyond what the individual works permit.  Inclusion of a covered work
   2.245 -in an aggregate does not cause this License to apply to the other
   2.246 -parts of the aggregate.
   2.247 -
   2.248 -  6. Conveying Non-Source Forms.
   2.249 -
   2.250 -  You may convey a covered work in object code form under the terms
   2.251 -of sections 4 and 5, provided that you also convey the
   2.252 -machine-readable Corresponding Source under the terms of this License,
   2.253 -in one of these ways:
   2.254 -
   2.255 -    a) Convey the object code in, or embodied in, a physical product
   2.256 -    (including a physical distribution medium), accompanied by the
   2.257 -    Corresponding Source fixed on a durable physical medium
   2.258 -    customarily used for software interchange.
   2.259 -
   2.260 -    b) Convey the object code in, or embodied in, a physical product
   2.261 -    (including a physical distribution medium), accompanied by a
   2.262 -    written offer, valid for at least three years and valid for as
   2.263 -    long as you offer spare parts or customer support for that product
   2.264 -    model, to give anyone who possesses the object code either (1) a
   2.265 -    copy of the Corresponding Source for all the software in the
   2.266 -    product that is covered by this License, on a durable physical
   2.267 -    medium customarily used for software interchange, for a price no
   2.268 -    more than your reasonable cost of physically performing this
   2.269 -    conveying of source, or (2) access to copy the
   2.270 -    Corresponding Source from a network server at no charge.
   2.271 -
   2.272 -    c) Convey individual copies of the object code with a copy of the
   2.273 -    written offer to provide the Corresponding Source.  This
   2.274 -    alternative is allowed only occasionally and noncommercially, and
   2.275 -    only if you received the object code with such an offer, in accord
   2.276 -    with subsection 6b.
   2.277 -
   2.278 -    d) Convey the object code by offering access from a designated
   2.279 -    place (gratis or for a charge), and offer equivalent access to the
   2.280 -    Corresponding Source in the same way through the same place at no
   2.281 -    further charge.  You need not require recipients to copy the
   2.282 -    Corresponding Source along with the object code.  If the place to
   2.283 -    copy the object code is a network server, the Corresponding Source
   2.284 -    may be on a different server (operated by you or a third party)
   2.285 -    that supports equivalent copying facilities, provided you maintain
   2.286 -    clear directions next to the object code saying where to find the
   2.287 -    Corresponding Source.  Regardless of what server hosts the
   2.288 -    Corresponding Source, you remain obligated to ensure that it is
   2.289 -    available for as long as needed to satisfy these requirements.
   2.290 -
   2.291 -    e) Convey the object code using peer-to-peer transmission, provided
   2.292 -    you inform other peers where the object code and Corresponding
   2.293 -    Source of the work are being offered to the general public at no
   2.294 -    charge under subsection 6d.
   2.295 -
   2.296 -  A separable portion of the object code, whose source code is excluded
   2.297 -from the Corresponding Source as a System Library, need not be
   2.298 -included in conveying the object code work.
   2.299 -
   2.300 -  A "User Product" is either (1) a "consumer product", which means any
   2.301 -tangible personal property which is normally used for personal, family,
   2.302 -or household purposes, or (2) anything designed or sold for incorporation
   2.303 -into a dwelling.  In determining whether a product is a consumer product,
   2.304 -doubtful cases shall be resolved in favor of coverage.  For a particular
   2.305 -product received by a particular user, "normally used" refers to a
   2.306 -typical or common use of that class of product, regardless of the status
   2.307 -of the particular user or of the way in which the particular user
   2.308 -actually uses, or expects or is expected to use, the product.  A product
   2.309 -is a consumer product regardless of whether the product has substantial
   2.310 -commercial, industrial or non-consumer uses, unless such uses represent
   2.311 -the only significant mode of use of the product.
   2.312 -
   2.313 -  "Installation Information" for a User Product means any methods,
   2.314 -procedures, authorization keys, or other information required to install
   2.315 -and execute modified versions of a covered work in that User Product from
   2.316 -a modified version of its Corresponding Source.  The information must
   2.317 -suffice to ensure that the continued functioning of the modified object
   2.318 -code is in no case prevented or interfered with solely because
   2.319 -modification has been made.
   2.320 -
   2.321 -  If you convey an object code work under this section in, or with, or
   2.322 -specifically for use in, a User Product, and the conveying occurs as
   2.323 -part of a transaction in which the right of possession and use of the
   2.324 -User Product is transferred to the recipient in perpetuity or for a
   2.325 -fixed term (regardless of how the transaction is characterized), the
   2.326 -Corresponding Source conveyed under this section must be accompanied
   2.327 -by the Installation Information.  But this requirement does not apply
   2.328 -if neither you nor any third party retains the ability to install
   2.329 -modified object code on the User Product (for example, the work has
   2.330 -been installed in ROM).
   2.331 -
   2.332 -  The requirement to provide Installation Information does not include a
   2.333 -requirement to continue to provide support service, warranty, or updates
   2.334 -for a work that has been modified or installed by the recipient, or for
   2.335 -the User Product in which it has been modified or installed.  Access to a
   2.336 -network may be denied when the modification itself materially and
   2.337 -adversely affects the operation of the network or violates the rules and
   2.338 -protocols for communication across the network.
   2.339 -
   2.340 -  Corresponding Source conveyed, and Installation Information provided,
   2.341 -in accord with this section must be in a format that is publicly
   2.342 -documented (and with an implementation available to the public in
   2.343 -source code form), and must require no special password or key for
   2.344 -unpacking, reading or copying.
   2.345 -
   2.346 -  7. Additional Terms.
   2.347 -
   2.348 -  "Additional permissions" are terms that supplement the terms of this
   2.349 -License by making exceptions from one or more of its conditions.
   2.350 -Additional permissions that are applicable to the entire Program shall
   2.351 -be treated as though they were included in this License, to the extent
   2.352 -that they are valid under applicable law.  If additional permissions
   2.353 -apply only to part of the Program, that part may be used separately
   2.354 -under those permissions, but the entire Program remains governed by
   2.355 -this License without regard to the additional permissions.
   2.356 -
   2.357 -  When you convey a copy of a covered work, you may at your option
   2.358 -remove any additional permissions from that copy, or from any part of
   2.359 -it.  (Additional permissions may be written to require their own
   2.360 -removal in certain cases when you modify the work.)  You may place
   2.361 -additional permissions on material, added by you to a covered work,
   2.362 -for which you have or can give appropriate copyright permission.
   2.363 -
   2.364 -  Notwithstanding any other provision of this License, for material you
   2.365 -add to a covered work, you may (if authorized by the copyright holders of
   2.366 -that material) supplement the terms of this License with terms:
   2.367 -
   2.368 -    a) Disclaiming warranty or limiting liability differently from the
   2.369 -    terms of sections 15 and 16 of this License; or
   2.370 -
   2.371 -    b) Requiring preservation of specified reasonable legal notices or
   2.372 -    author attributions in that material or in the Appropriate Legal
   2.373 -    Notices displayed by works containing it; or
   2.374 -
   2.375 -    c) Prohibiting misrepresentation of the origin of that material, or
   2.376 -    requiring that modified versions of such material be marked in
   2.377 -    reasonable ways as different from the original version; or
   2.378 -
   2.379 -    d) Limiting the use for publicity purposes of names of licensors or
   2.380 -    authors of the material; or
   2.381 -
   2.382 -    e) Declining to grant rights under trademark law for use of some
   2.383 -    trade names, trademarks, or service marks; or
   2.384 -
   2.385 -    f) Requiring indemnification of licensors and authors of that
   2.386 -    material by anyone who conveys the material (or modified versions of
   2.387 -    it) with contractual assumptions of liability to the recipient, for
   2.388 -    any liability that these contractual assumptions directly impose on
   2.389 -    those licensors and authors.
   2.390 -
   2.391 -  All other non-permissive additional terms are considered "further
   2.392 -restrictions" within the meaning of section 10.  If the Program as you
   2.393 -received it, or any part of it, contains a notice stating that it is
   2.394 -governed by this License along with a term that is a further
   2.395 -restriction, you may remove that term.  If a license document contains
   2.396 -a further restriction but permits relicensing or conveying under this
   2.397 -License, you may add to a covered work material governed by the terms
   2.398 -of that license document, provided that the further restriction does
   2.399 -not survive such relicensing or conveying.
   2.400 -
   2.401 -  If you add terms to a covered work in accord with this section, you
   2.402 -must place, in the relevant source files, a statement of the
   2.403 -additional terms that apply to those files, or a notice indicating
   2.404 -where to find the applicable terms.
   2.405 -
   2.406 -  Additional terms, permissive or non-permissive, may be stated in the
   2.407 -form of a separately written license, or stated as exceptions;
   2.408 -the above requirements apply either way.
   2.409 -
   2.410 -  8. Termination.
   2.411 -
   2.412 -  You may not propagate or modify a covered work except as expressly
   2.413 -provided under this License.  Any attempt otherwise to propagate or
   2.414 -modify it is void, and will automatically terminate your rights under
   2.415 -this License (including any patent licenses granted under the third
   2.416 -paragraph of section 11).
   2.417 -
   2.418 -  However, if you cease all violation of this License, then your
   2.419 -license from a particular copyright holder is reinstated (a)
   2.420 -provisionally, unless and until the copyright holder explicitly and
   2.421 -finally terminates your license, and (b) permanently, if the copyright
   2.422 -holder fails to notify you of the violation by some reasonable means
   2.423 -prior to 60 days after the cessation.
   2.424 -
   2.425 -  Moreover, your license from a particular copyright holder is
   2.426 -reinstated permanently if the copyright holder notifies you of the
   2.427 -violation by some reasonable means, this is the first time you have
   2.428 -received notice of violation of this License (for any work) from that
   2.429 -copyright holder, and you cure the violation prior to 30 days after
   2.430 -your receipt of the notice.
   2.431 -
   2.432 -  Termination of your rights under this section does not terminate the
   2.433 -licenses of parties who have received copies or rights from you under
   2.434 -this License.  If your rights have been terminated and not permanently
   2.435 -reinstated, you do not qualify to receive new licenses for the same
   2.436 -material under section 10.
   2.437 -
   2.438 -  9. Acceptance Not Required for Having Copies.
   2.439 -
   2.440 -  You are not required to accept this License in order to receive or
   2.441 -run a copy of the Program.  Ancillary propagation of a covered work
   2.442 -occurring solely as a consequence of using peer-to-peer transmission
   2.443 -to receive a copy likewise does not require acceptance.  However,
   2.444 -nothing other than this License grants you permission to propagate or
   2.445 -modify any covered work.  These actions infringe copyright if you do
   2.446 -not accept this License.  Therefore, by modifying or propagating a
   2.447 -covered work, you indicate your acceptance of this License to do so.
   2.448 -
   2.449 -  10. Automatic Licensing of Downstream Recipients.
   2.450 -
   2.451 -  Each time you convey a covered work, the recipient automatically
   2.452 -receives a license from the original licensors, to run, modify and
   2.453 -propagate that work, subject to this License.  You are not responsible
   2.454 -for enforcing compliance by third parties with this License.
   2.455 -
   2.456 -  An "entity transaction" is a transaction transferring control of an
   2.457 -organization, or substantially all assets of one, or subdividing an
   2.458 -organization, or merging organizations.  If propagation of a covered
   2.459 -work results from an entity transaction, each party to that
   2.460 -transaction who receives a copy of the work also receives whatever
   2.461 -licenses to the work the party's predecessor in interest had or could
   2.462 -give under the previous paragraph, plus a right to possession of the
   2.463 -Corresponding Source of the work from the predecessor in interest, if
   2.464 -the predecessor has it or can get it with reasonable efforts.
   2.465 -
   2.466 -  You may not impose any further restrictions on the exercise of the
   2.467 -rights granted or affirmed under this License.  For example, you may
   2.468 -not impose a license fee, royalty, or other charge for exercise of
   2.469 -rights granted under this License, and you may not initiate litigation
   2.470 -(including a cross-claim or counterclaim in a lawsuit) alleging that
   2.471 -any patent claim is infringed by making, using, selling, offering for
   2.472 -sale, or importing the Program or any portion of it.
   2.473 -
   2.474 -  11. Patents.
   2.475 -
   2.476 -  A "contributor" is a copyright holder who authorizes use under this
   2.477 -License of the Program or a work on which the Program is based.  The
   2.478 -work thus licensed is called the contributor's "contributor version".
   2.479 -
   2.480 -  A contributor's "essential patent claims" are all patent claims
   2.481 -owned or controlled by the contributor, whether already acquired or
   2.482 -hereafter acquired, that would be infringed by some manner, permitted
   2.483 -by this License, of making, using, or selling its contributor version,
   2.484 -but do not include claims that would be infringed only as a
   2.485 -consequence of further modification of the contributor version.  For
   2.486 -purposes of this definition, "control" includes the right to grant
   2.487 -patent sublicenses in a manner consistent with the requirements of
   2.488 -this License.
   2.489 -
   2.490 -  Each contributor grants you a non-exclusive, worldwide, royalty-free
   2.491 -patent license under the contributor's essential patent claims, to
   2.492 -make, use, sell, offer for sale, import and otherwise run, modify and
   2.493 -propagate the contents of its contributor version.
   2.494 -
   2.495 -  In the following three paragraphs, a "patent license" is any express
   2.496 -agreement or commitment, however denominated, not to enforce a patent
   2.497 -(such as an express permission to practice a patent or covenant not to
   2.498 -sue for patent infringement).  To "grant" such a patent license to a
   2.499 -party means to make such an agreement or commitment not to enforce a
   2.500 -patent against the party.
   2.501 -
   2.502 -  If you convey a covered work, knowingly relying on a patent license,
   2.503 -and the Corresponding Source of the work is not available for anyone
   2.504 -to copy, free of charge and under the terms of this License, through a
   2.505 -publicly available network server or other readily accessible means,
   2.506 -then you must either (1) cause the Corresponding Source to be so
   2.507 -available, or (2) arrange to deprive yourself of the benefit of the
   2.508 -patent license for this particular work, or (3) arrange, in a manner
   2.509 -consistent with the requirements of this License, to extend the patent
   2.510 -license to downstream recipients.  "Knowingly relying" means you have
   2.511 -actual knowledge that, but for the patent license, your conveying the
   2.512 -covered work in a country, or your recipient's use of the covered work
   2.513 -in a country, would infringe one or more identifiable patents in that
   2.514 -country that you have reason to believe are valid.
   2.515 -
   2.516 -  If, pursuant to or in connection with a single transaction or
   2.517 -arrangement, you convey, or propagate by procuring conveyance of, a
   2.518 -covered work, and grant a patent license to some of the parties
   2.519 -receiving the covered work authorizing them to use, propagate, modify
   2.520 -or convey a specific copy of the covered work, then the patent license
   2.521 -you grant is automatically extended to all recipients of the covered
   2.522 -work and works based on it.
   2.523 -
   2.524 -  A patent license is "discriminatory" if it does not include within
   2.525 -the scope of its coverage, prohibits the exercise of, or is
   2.526 -conditioned on the non-exercise of one or more of the rights that are
   2.527 -specifically granted under this License.  You may not convey a covered
   2.528 -work if you are a party to an arrangement with a third party that is
   2.529 -in the business of distributing software, under which you make payment
   2.530 -to the third party based on the extent of your activity of conveying
   2.531 -the work, and under which the third party grants, to any of the
   2.532 -parties who would receive the covered work from you, a discriminatory
   2.533 -patent license (a) in connection with copies of the covered work
   2.534 -conveyed by you (or copies made from those copies), or (b) primarily
   2.535 -for and in connection with specific products or compilations that
   2.536 -contain the covered work, unless you entered into that arrangement,
   2.537 -or that patent license was granted, prior to 28 March 2007.
   2.538 -
   2.539 -  Nothing in this License shall be construed as excluding or limiting
   2.540 -any implied license or other defenses to infringement that may
   2.541 -otherwise be available to you under applicable patent law.
   2.542 -
   2.543 -  12. No Surrender of Others' Freedom.
   2.544 -
   2.545 -  If conditions are imposed on you (whether by court order, agreement or
   2.546 -otherwise) that contradict the conditions of this License, they do not
   2.547 -excuse you from the conditions of this License.  If you cannot convey a
   2.548 -covered work so as to satisfy simultaneously your obligations under this
   2.549 -License and any other pertinent obligations, then as a consequence you may
   2.550 -not convey it at all.  For example, if you agree to terms that obligate you
   2.551 -to collect a royalty for further conveying from those to whom you convey
   2.552 -the Program, the only way you could satisfy both those terms and this
   2.553 -License would be to refrain entirely from conveying the Program.
   2.554 -
   2.555 -  13. Use with the GNU Affero General Public License.
   2.556 -
   2.557 -  Notwithstanding any other provision of this License, you have
   2.558 -permission to link or combine any covered work with a work licensed
   2.559 -under version 3 of the GNU Affero General Public License into a single
   2.560 -combined work, and to convey the resulting work.  The terms of this
   2.561 -License will continue to apply to the part which is the covered work,
   2.562 -but the special requirements of the GNU Affero General Public License,
   2.563 -section 13, concerning interaction through a network will apply to the
   2.564 -combination as such.
   2.565 -
   2.566 -  14. Revised Versions of this License.
   2.567 -
   2.568 -  The Free Software Foundation may publish revised and/or new versions of
   2.569 -the GNU General Public License from time to time.  Such new versions will
   2.570 -be similar in spirit to the present version, but may differ in detail to
   2.571 -address new problems or concerns.
   2.572 -
   2.573 -  Each version is given a distinguishing version number.  If the
   2.574 -Program specifies that a certain numbered version of the GNU General
   2.575 -Public License "or any later version" applies to it, you have the
   2.576 -option of following the terms and conditions either of that numbered
   2.577 -version or of any later version published by the Free Software
   2.578 -Foundation.  If the Program does not specify a version number of the
   2.579 -GNU General Public License, you may choose any version ever published
   2.580 -by the Free Software Foundation.
   2.581 -
   2.582 -  If the Program specifies that a proxy can decide which future
   2.583 -versions of the GNU General Public License can be used, that proxy's
   2.584 -public statement of acceptance of a version permanently authorizes you
   2.585 -to choose that version for the Program.
   2.586 -
   2.587 -  Later license versions may give you additional or different
   2.588 -permissions.  However, no additional obligations are imposed on any
   2.589 -author or copyright holder as a result of your choosing to follow a
   2.590 -later version.
   2.591 -
   2.592 -  15. Disclaimer of Warranty.
   2.593 -
   2.594 -  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
   2.595 -APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
   2.596 -HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
   2.597 -OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
   2.598 -THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   2.599 -PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
   2.600 -IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
   2.601 -ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
   2.602 -
   2.603 -  16. Limitation of Liability.
   2.604 -
   2.605 -  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
   2.606 -WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
   2.607 -THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
   2.608 -GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
   2.609 -USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
   2.610 -DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
   2.611 -PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
   2.612 -EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
   2.613 -SUCH DAMAGES.
   2.614 -
   2.615 -  17. Interpretation of Sections 15 and 16.
   2.616 -
   2.617 -  If the disclaimer of warranty and limitation of liability provided
   2.618 -above cannot be given local legal effect according to their terms,
   2.619 -reviewing courts shall apply local law that most closely approximates
   2.620 -an absolute waiver of all civil liability in connection with the
   2.621 -Program, unless a warranty or assumption of liability accompanies a
   2.622 -copy of the Program in return for a fee.
   2.623 -
   2.624 -                     END OF TERMS AND CONDITIONS
   2.625 -
   2.626 -            How to Apply These Terms to Your New Programs
   2.627 -
   2.628 -  If you develop a new program, and you want it to be of the greatest
   2.629 -possible use to the public, the best way to achieve this is to make it
   2.630 -free software which everyone can redistribute and change under these terms.
   2.631 -
   2.632 -  To do so, attach the following notices to the program.  It is safest
   2.633 -to attach them to the start of each source file to most effectively
   2.634 -state the exclusion of warranty; and each file should have at least
   2.635 -the "copyright" line and a pointer to where the full notice is found.
   2.636 -
   2.637 -    <one line to give the program's name and a brief idea of what it does.>
   2.638 -    Copyright (C) <year>  <name of author>
   2.639 -
   2.640 -    This program is free software: you can redistribute it and/or modify
   2.641 -    it under the terms of the GNU General Public License as published by
   2.642 -    the Free Software Foundation, either version 3 of the License, or
   2.643 -    (at your option) any later version.
   2.644 -
   2.645 -    This program is distributed in the hope that it will be useful,
   2.646 -    but WITHOUT ANY WARRANTY; without even the implied warranty of
   2.647 -    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   2.648 -    GNU General Public License for more details.
   2.649 -
   2.650 -    You should have received a copy of the GNU General Public License
   2.651 -    along with this program.  If not, see <http://www.gnu.org/licenses/>.
   2.652 -
   2.653 -Also add information on how to contact you by electronic and paper mail.
   2.654 -
   2.655 -  If the program does terminal interaction, make it output a short
   2.656 -notice like this when it starts in an interactive mode:
   2.657 -
   2.658 -    <program>  Copyright (C) <year>  <name of author>
   2.659 -    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
   2.660 -    This is free software, and you are welcome to redistribute it
   2.661 -    under certain conditions; type `show c' for details.
   2.662 -
   2.663 -The hypothetical commands `show w' and `show c' should show the appropriate
   2.664 -parts of the General Public License.  Of course, your program's commands
   2.665 -might be different; for a GUI interface, you would use an "about box".
   2.666 -
   2.667 -  You should also get your employer (if you work as a programmer) or school,
   2.668 -if any, to sign a "copyright disclaimer" for the program, if necessary.
   2.669 -For more information on this, and how to apply and follow the GNU GPL, see
   2.670 -<http://www.gnu.org/licenses/>.
   2.671 -
   2.672 -  The GNU General Public License does not permit incorporating your program
   2.673 -into proprietary programs.  If your program is a subroutine library, you
   2.674 -may consider it more useful to permit linking proprietary applications with
   2.675 -the library.  If this is what you want to do, use the GNU Lesser General
   2.676 -Public License instead of this License.  But first, please read
   2.677 -<http://www.gnu.org/philosophy/why-not-lgpl.html>.
   2.678 +                    GNU GENERAL PUBLIC LICENSE
   2.679 +                       Version 3, 29 June 2007
   2.680 +
   2.681 + Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
   2.682 + Everyone is permitted to copy and distribute verbatim copies
   2.683 + of this license document, but changing it is not allowed.
   2.684 +
   2.685 +                            Preamble
   2.686 +
   2.687 +  The GNU General Public License is a free, copyleft license for
   2.688 +software and other kinds of works.
   2.689 +
   2.690 +  The licenses for most software and other practical works are designed
   2.691 +to take away your freedom to share and change the works.  By contrast,
   2.692 +the GNU General Public License is intended to guarantee your freedom to
   2.693 +share and change all versions of a program--to make sure it remains free
   2.694 +software for all its users.  We, the Free Software Foundation, use the
   2.695 +GNU General Public License for most of our software; it applies also to
   2.696 +any other work released this way by its authors.  You can apply it to
   2.697 +your programs, too.
   2.698 +
   2.699 +  When we speak of free software, we are referring to freedom, not
   2.700 +price.  Our General Public Licenses are designed to make sure that you
   2.701 +have the freedom to distribute copies of free software (and charge for
   2.702 +them if you wish), that you receive source code or can get it if you
   2.703 +want it, that you can change the software or use pieces of it in new
   2.704 +free programs, and that you know you can do these things.
   2.705 +
   2.706 +  To protect your rights, we need to prevent others from denying you
   2.707 +these rights or asking you to surrender the rights.  Therefore, you have
   2.708 +certain responsibilities if you distribute copies of the software, or if
   2.709 +you modify it: responsibilities to respect the freedom of others.
   2.710 +
   2.711 +  For example, if you distribute copies of such a program, whether
   2.712 +gratis or for a fee, you must pass on to the recipients the same
   2.713 +freedoms that you received.  You must make sure that they, too, receive
   2.714 +or can get the source code.  And you must show them these terms so they
   2.715 +know their rights.
   2.716 +
   2.717 +  Developers that use the GNU GPL protect your rights with two steps:
   2.718 +(1) assert copyright on the software, and (2) offer you this License
   2.719 +giving you legal permission to copy, distribute and/or modify it.
   2.720 +
   2.721 +  For the developers' and authors' protection, the GPL clearly explains
   2.722 +that there is no warranty for this free software.  For both users' and
   2.723 +authors' sake, the GPL requires that modified versions be marked as
   2.724 +changed, so that their problems will not be attributed erroneously to
   2.725 +authors of previous versions.
   2.726 +
   2.727 +  Some devices are designed to deny users access to install or run
   2.728 +modified versions of the software inside them, although the manufacturer
   2.729 +can do so.  This is fundamentally incompatible with the aim of
   2.730 +protecting users' freedom to change the software.  The systematic
   2.731 +pattern of such abuse occurs in the area of products for individuals to
   2.732 +use, which is precisely where it is most unacceptable.  Therefore, we
   2.733 +have designed this version of the GPL to prohibit the practice for those
   2.734 +products.  If such problems arise substantially in other domains, we
   2.735 +stand ready to extend this provision to those domains in future versions
   2.736 +of the GPL, as needed to protect the freedom of users.
   2.737 +
   2.738 +  Finally, every program is threatened constantly by software patents.
   2.739 +States should not allow patents to restrict development and use of
   2.740 +software on general-purpose computers, but in those that do, we wish to
   2.741 +avoid the special danger that patents applied to a free program could
   2.742 +make it effectively proprietary.  To prevent this, the GPL assures that
   2.743 +patents cannot be used to render the program non-free.
   2.744 +
   2.745 +  The precise terms and conditions for copying, distribution and
   2.746 +modification follow.
   2.747 +
   2.748 +                       TERMS AND CONDITIONS
   2.749 +
   2.750 +  0. Definitions.
   2.751 +
   2.752 +  "This License" refers to version 3 of the GNU General Public License.
   2.753 +
   2.754 +  "Copyright" also means copyright-like laws that apply to other kinds of
   2.755 +works, such as semiconductor masks.
   2.756 +
   2.757 +  "The Program" refers to any copyrightable work licensed under this
   2.758 +License.  Each licensee is addressed as "you".  "Licensees" and
   2.759 +"recipients" may be individuals or organizations.
   2.760 +
   2.761 +  To "modify" a work means to copy from or adapt all or part of the work
   2.762 +in a fashion requiring copyright permission, other than the making of an
   2.763 +exact copy.  The resulting work is called a "modified version" of the
   2.764 +earlier work or a work "based on" the earlier work.
   2.765 +
   2.766 +  A "covered work" means either the unmodified Program or a work based
   2.767 +on the Program.
   2.768 +
   2.769 +  To "propagate" a work means to do anything with it that, without
   2.770 +permission, would make you directly or secondarily liable for
   2.771 +infringement under applicable copyright law, except executing it on a
   2.772 +computer or modifying a private copy.  Propagation includes copying,
   2.773 +distribution (with or without modification), making available to the
   2.774 +public, and in some countries other activities as well.
   2.775 +
   2.776 +  To "convey" a work means any kind of propagation that enables other
   2.777 +parties to make or receive copies.  Mere interaction with a user through
   2.778 +a computer network, with no transfer of a copy, is not conveying.
   2.779 +
   2.780 +  An interactive user interface displays "Appropriate Legal Notices"
   2.781 +to the extent that it includes a convenient and prominently visible
   2.782 +feature that (1) displays an appropriate copyright notice, and (2)
   2.783 +tells the user that there is no warranty for the work (except to the
   2.784 +extent that warranties are provided), that licensees may convey the
   2.785 +work under this License, and how to view a copy of this License.  If
   2.786 +the interface presents a list of user commands or options, such as a
   2.787 +menu, a prominent item in the list meets this criterion.
   2.788 +
   2.789 +  1. Source Code.
   2.790 +
   2.791 +  The "source code" for a work means the preferred form of the work
   2.792 +for making modifications to it.  "Object code" means any non-source
   2.793 +form of a work.
   2.794 +
   2.795 +  A "Standard Interface" means an interface that either is an official
   2.796 +standard defined by a recognized standards body, or, in the case of
   2.797 +interfaces specified for a particular programming language, one that
   2.798 +is widely used among developers working in that language.
   2.799 +
   2.800 +  The "System Libraries" of an executable work include anything, other
   2.801 +than the work as a whole, that (a) is included in the normal form of
   2.802 +packaging a Major Component, but which is not part of that Major
   2.803 +Component, and (b) serves only to enable use of the work with that
   2.804 +Major Component, or to implement a Standard Interface for which an
   2.805 +implementation is available to the public in source code form.  A
   2.806 +"Major Component", in this context, means a major essential component
   2.807 +(kernel, window system, and so on) of the specific operating system
   2.808 +(if any) on which the executable work runs, or a compiler used to
   2.809 +produce the work, or an object code interpreter used to run it.
   2.810 +
   2.811 +  The "Corresponding Source" for a work in object code form means all
   2.812 +the source code needed to generate, install, and (for an executable
   2.813 +work) run the object code and to modify the work, including scripts to
   2.814 +control those activities.  However, it does not include the work's
   2.815 +System Libraries, or general-purpose tools or generally available free
   2.816 +programs which are used unmodified in performing those activities but
   2.817 +which are not part of the work.  For example, Corresponding Source
   2.818 +includes interface definition files associated with source files for
   2.819 +the work, and the source code for shared libraries and dynamically
   2.820 +linked subprograms that the work is specifically designed to require,
   2.821 +such as by intimate data communication or control flow between those
   2.822 +subprograms and other parts of the work.
   2.823 +
   2.824 +  The Corresponding Source need not include anything that users
   2.825 +can regenerate automatically from other parts of the Corresponding
   2.826 +Source.
   2.827 +
   2.828 +  The Corresponding Source for a work in source code form is that
   2.829 +same work.
   2.830 +
   2.831 +  2. Basic Permissions.
   2.832 +
   2.833 +  All rights granted under this License are granted for the term of
   2.834 +copyright on the Program, and are irrevocable provided the stated
   2.835 +conditions are met.  This License explicitly affirms your unlimited
   2.836 +permission to run the unmodified Program.  The output from running a
   2.837 +covered work is covered by this License only if the output, given its
   2.838 +content, constitutes a covered work.  This License acknowledges your
   2.839 +rights of fair use or other equivalent, as provided by copyright law.
   2.840 +
   2.841 +  You may make, run and propagate covered works that you do not
   2.842 +convey, without conditions so long as your license otherwise remains
   2.843 +in force.  You may convey covered works to others for the sole purpose
   2.844 +of having them make modifications exclusively for you, or provide you
   2.845 +with facilities for running those works, provided that you comply with
   2.846 +the terms of this License in conveying all material for which you do
   2.847 +not control copyright.  Those thus making or running the covered works
   2.848 +for you must do so exclusively on your behalf, under your direction
   2.849 +and control, on terms that prohibit them from making any copies of
   2.850 +your copyrighted material outside their relationship with you.
   2.851 +
   2.852 +  Conveying under any other circumstances is permitted solely under
   2.853 +the conditions stated below.  Sublicensing is not allowed; section 10
   2.854 +makes it unnecessary.
   2.855 +
   2.856 +  3. Protecting Users' Legal Rights From Anti-Circumvention Law.
   2.857 +
   2.858 +  No covered work shall be deemed part of an effective technological
   2.859 +measure under any applicable law fulfilling obligations under article
   2.860 +11 of the WIPO copyright treaty adopted on 20 December 1996, or
   2.861 +similar laws prohibiting or restricting circumvention of such
   2.862 +measures.
   2.863 +
   2.864 +  When you convey a covered work, you waive any legal power to forbid
   2.865 +circumvention of technological measures to the extent such circumvention
   2.866 +is effected by exercising rights under this License with respect to
   2.867 +the covered work, and you disclaim any intention to limit operation or
   2.868 +modification of the work as a means of enforcing, against the work's
   2.869 +users, your or third parties' legal rights to forbid circumvention of
   2.870 +technological measures.
   2.871 +
   2.872 +  4. Conveying Verbatim Copies.
   2.873 +
   2.874 +  You may convey verbatim copies of the Program's source code as you
   2.875 +receive it, in any medium, provided that you conspicuously and
   2.876 +appropriately publish on each copy an appropriate copyright notice;
   2.877 +keep intact all notices stating that this License and any
   2.878 +non-permissive terms added in accord with section 7 apply to the code;
   2.879 +keep intact all notices of the absence of any warranty; and give all
   2.880 +recipients a copy of this License along with the Program.
   2.881 +
   2.882 +  You may charge any price or no price for each copy that you convey,
   2.883 +and you may offer support or warranty protection for a fee.
   2.884 +
   2.885 +  5. Conveying Modified Source Versions.
   2.886 +
   2.887 +  You may convey a work based on the Program, or the modifications to
   2.888 +produce it from the Program, in the form of source code under the
   2.889 +terms of section 4, provided that you also meet all of these conditions:
   2.890 +
   2.891 +    a) The work must carry prominent notices stating that you modified
   2.892 +    it, and giving a relevant date.
   2.893 +
   2.894 +    b) The work must carry prominent notices stating that it is
   2.895 +    released under this License and any conditions added under section
   2.896 +    7.  This requirement modifies the requirement in section 4 to
   2.897 +    "keep intact all notices".
   2.898 +
   2.899 +    c) You must license the entire work, as a whole, under this
   2.900 +    License to anyone who comes into possession of a copy.  This
   2.901 +    License will therefore apply, along with any applicable section 7
   2.902 +    additional terms, to the whole of the work, and all its parts,
   2.903 +    regardless of how they are packaged.  This License gives no
   2.904 +    permission to license the work in any other way, but it does not
   2.905 +    invalidate such permission if you have separately received it.
   2.906 +
   2.907 +    d) If the work has interactive user interfaces, each must display
   2.908 +    Appropriate Legal Notices; however, if the Program has interactive
   2.909 +    interfaces that do not display Appropriate Legal Notices, your
   2.910 +    work need not make them do so.
   2.911 +
   2.912 +  A compilation of a covered work with other separate and independent
   2.913 +works, which are not by their nature extensions of the covered work,
   2.914 +and which are not combined with it such as to form a larger program,
   2.915 +in or on a volume of a storage or distribution medium, is called an
   2.916 +"aggregate" if the compilation and its resulting copyright are not
   2.917 +used to limit the access or legal rights of the compilation's users
   2.918 +beyond what the individual works permit.  Inclusion of a covered work
   2.919 +in an aggregate does not cause this License to apply to the other
   2.920 +parts of the aggregate.
   2.921 +
   2.922 +  6. Conveying Non-Source Forms.
   2.923 +
   2.924 +  You may convey a covered work in object code form under the terms
   2.925 +of sections 4 and 5, provided that you also convey the
   2.926 +machine-readable Corresponding Source under the terms of this License,
   2.927 +in one of these ways:
   2.928 +
   2.929 +    a) Convey the object code in, or embodied in, a physical product
   2.930 +    (including a physical distribution medium), accompanied by the
   2.931 +    Corresponding Source fixed on a durable physical medium
   2.932 +    customarily used for software interchange.
   2.933 +
   2.934 +    b) Convey the object code in, or embodied in, a physical product
   2.935 +    (including a physical distribution medium), accompanied by a
   2.936 +    written offer, valid for at least three years and valid for as
   2.937 +    long as you offer spare parts or customer support for that product
   2.938 +    model, to give anyone who possesses the object code either (1) a
   2.939 +    copy of the Corresponding Source for all the software in the
   2.940 +    product that is covered by this License, on a durable physical
   2.941 +    medium customarily used for software interchange, for a price no
   2.942 +    more than your reasonable cost of physically performing this
   2.943 +    conveying of source, or (2) access to copy the
   2.944 +    Corresponding Source from a network server at no charge.
   2.945 +
   2.946 +    c) Convey individual copies of the object code with a copy of the
   2.947 +    written offer to provide the Corresponding Source.  This
   2.948 +    alternative is allowed only occasionally and noncommercially, and
   2.949 +    only if you received the object code with such an offer, in accord
   2.950 +    with subsection 6b.
   2.951 +
   2.952 +    d) Convey the object code by offering access from a designated
   2.953 +    place (gratis or for a charge), and offer equivalent access to the
   2.954 +    Corresponding Source in the same way through the same place at no
   2.955 +    further charge.  You need not require recipients to copy the
   2.956 +    Corresponding Source along with the object code.  If the place to
   2.957 +    copy the object code is a network server, the Corresponding Source
   2.958 +    may be on a different server (operated by you or a third party)
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   2.965 +    e) Convey the object code using peer-to-peer transmission, provided
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   2.969 +
   2.970 +  A separable portion of the object code, whose source code is excluded
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   2.974 +  A "User Product" is either (1) a "consumer product", which means any
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   2.987 +  "Installation Information" for a User Product means any methods,
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  2.1020 +  7. Additional Terms.
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  2.1022 +  "Additional permissions" are terms that supplement the terms of this
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  2.1024 +Additional permissions that are applicable to the entire Program shall
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  2.1027 +apply only to part of the Program, that part may be used separately
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  2.1030 +
  2.1031 +  When you convey a copy of a covered work, you may at your option
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  2.1075 +  If you add terms to a covered work in accord with this section, you
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  2.1079 +
  2.1080 +  Additional terms, permissive or non-permissive, may be stated in the
  2.1081 +form of a separately written license, or stated as exceptions;
  2.1082 +the above requirements apply either way.
  2.1083 +
  2.1084 +  8. Termination.
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  2.1086 +  You may not propagate or modify a covered work except as expressly
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  2.1090 +paragraph of section 11).
  2.1091 +
  2.1092 +  However, if you cease all violation of this License, then your
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  2.1099 +  Moreover, your license from a particular copyright holder is
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  2.1106 +  Termination of your rights under this section does not terminate the
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  2.1110 +material under section 10.
  2.1111 +
  2.1112 +  9. Acceptance Not Required for Having Copies.
  2.1113 +
  2.1114 +  You are not required to accept this License in order to receive or
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  2.1122 +
  2.1123 +  10. Automatic Licensing of Downstream Recipients.
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  2.1125 +  Each time you convey a covered work, the recipient automatically
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  2.1130 +  An "entity transaction" is a transaction transferring control of an
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  2.1140 +  You may not impose any further restrictions on the exercise of the
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  2.1147 +
  2.1148 +  11. Patents.
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  2.1150 +  A "contributor" is a copyright holder who authorizes use under this
  2.1151 +License of the Program or a work on which the Program is based.  The
  2.1152 +work thus licensed is called the contributor's "contributor version".
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  2.1154 +  A contributor's "essential patent claims" are all patent claims
  2.1155 +owned or controlled by the contributor, whether already acquired or
  2.1156 +hereafter acquired, that would be infringed by some manner, permitted
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  2.1159 +consequence of further modification of the contributor version.  For
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  2.1162 +this License.
  2.1163 +
  2.1164 +  Each contributor grants you a non-exclusive, worldwide, royalty-free
  2.1165 +patent license under the contributor's essential patent claims, to
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  2.1167 +propagate the contents of its contributor version.
  2.1168 +
  2.1169 +  In the following three paragraphs, a "patent license" is any express
  2.1170 +agreement or commitment, however denominated, not to enforce a patent
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  2.1174 +patent against the party.
  2.1175 +
  2.1176 +  If you convey a covered work, knowingly relying on a patent license,
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  2.1180 +then you must either (1) cause the Corresponding Source to be so
  2.1181 +available, or (2) arrange to deprive yourself of the benefit of the
  2.1182 +patent license for this particular work, or (3) arrange, in a manner
  2.1183 +consistent with the requirements of this License, to extend the patent
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  2.1187 +in a country, would infringe one or more identifiable patents in that
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  2.1189 +
  2.1190 +  If, pursuant to or in connection with a single transaction or
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  2.1197 +
  2.1198 +  A patent license is "discriminatory" if it does not include within
  2.1199 +the scope of its coverage, prohibits the exercise of, or is
  2.1200 +conditioned on the non-exercise of one or more of the rights that are
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  2.1211 +or that patent license was granted, prior to 28 March 2007.
  2.1212 +
  2.1213 +  Nothing in this License shall be construed as excluding or limiting
  2.1214 +any implied license or other defenses to infringement that may
  2.1215 +otherwise be available to you under applicable patent law.
  2.1216 +
  2.1217 +  12. No Surrender of Others' Freedom.
  2.1218 +
  2.1219 +  If conditions are imposed on you (whether by court order, agreement or
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  2.1221 +excuse you from the conditions of this License.  If you cannot convey a
  2.1222 +covered work so as to satisfy simultaneously your obligations under this
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  2.1226 +the Program, the only way you could satisfy both those terms and this
  2.1227 +License would be to refrain entirely from conveying the Program.
  2.1228 +
  2.1229 +  13. Use with the GNU Affero General Public License.
  2.1230 +
  2.1231 +  Notwithstanding any other provision of this License, you have
  2.1232 +permission to link or combine any covered work with a work licensed
  2.1233 +under version 3 of the GNU Affero General Public License into a single
  2.1234 +combined work, and to convey the resulting work.  The terms of this
  2.1235 +License will continue to apply to the part which is the covered work,
  2.1236 +but the special requirements of the GNU Affero General Public License,
  2.1237 +section 13, concerning interaction through a network will apply to the
  2.1238 +combination as such.
  2.1239 +
  2.1240 +  14. Revised Versions of this License.
  2.1241 +
  2.1242 +  The Free Software Foundation may publish revised and/or new versions of
  2.1243 +the GNU General Public License from time to time.  Such new versions will
  2.1244 +be similar in spirit to the present version, but may differ in detail to
  2.1245 +address new problems or concerns.
  2.1246 +
  2.1247 +  Each version is given a distinguishing version number.  If the
  2.1248 +Program specifies that a certain numbered version of the GNU General
  2.1249 +Public License "or any later version" applies to it, you have the
  2.1250 +option of following the terms and conditions either of that numbered
  2.1251 +version or of any later version published by the Free Software
  2.1252 +Foundation.  If the Program does not specify a version number of the
  2.1253 +GNU General Public License, you may choose any version ever published
  2.1254 +by the Free Software Foundation.
  2.1255 +
  2.1256 +  If the Program specifies that a proxy can decide which future
  2.1257 +versions of the GNU General Public License can be used, that proxy's
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  2.1259 +to choose that version for the Program.
  2.1260 +
  2.1261 +  Later license versions may give you additional or different
  2.1262 +permissions.  However, no additional obligations are imposed on any
  2.1263 +author or copyright holder as a result of your choosing to follow a
  2.1264 +later version.
  2.1265 +
  2.1266 +  15. Disclaimer of Warranty.
  2.1267 +
  2.1268 +  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
  2.1269 +APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
  2.1270 +HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
  2.1271 +OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
  2.1272 +THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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  2.1275 +ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
  2.1276 +
  2.1277 +  16. Limitation of Liability.
  2.1278 +
  2.1279 +  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
  2.1280 +WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
  2.1281 +THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
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  2.1286 +EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
  2.1287 +SUCH DAMAGES.
  2.1288 +
  2.1289 +  17. Interpretation of Sections 15 and 16.
  2.1290 +
  2.1291 +  If the disclaimer of warranty and limitation of liability provided
  2.1292 +above cannot be given local legal effect according to their terms,
  2.1293 +reviewing courts shall apply local law that most closely approximates
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  2.1295 +Program, unless a warranty or assumption of liability accompanies a
  2.1296 +copy of the Program in return for a fee.
  2.1297 +
  2.1298 +                     END OF TERMS AND CONDITIONS
  2.1299 +
  2.1300 +            How to Apply These Terms to Your New Programs
  2.1301 +
  2.1302 +  If you develop a new program, and you want it to be of the greatest
  2.1303 +possible use to the public, the best way to achieve this is to make it
  2.1304 +free software which everyone can redistribute and change under these terms.
  2.1305 +
  2.1306 +  To do so, attach the following notices to the program.  It is safest
  2.1307 +to attach them to the start of each source file to most effectively
  2.1308 +state the exclusion of warranty; and each file should have at least
  2.1309 +the "copyright" line and a pointer to where the full notice is found.
  2.1310 +
  2.1311 +    <one line to give the program's name and a brief idea of what it does.>
  2.1312 +    Copyright (C) <year>  <name of author>
  2.1313 +
  2.1314 +    This program is free software: you can redistribute it and/or modify
  2.1315 +    it under the terms of the GNU General Public License as published by
  2.1316 +    the Free Software Foundation, either version 3 of the License, or
  2.1317 +    (at your option) any later version.
  2.1318 +
  2.1319 +    This program is distributed in the hope that it will be useful,
  2.1320 +    but WITHOUT ANY WARRANTY; without even the implied warranty of
  2.1321 +    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  2.1322 +    GNU General Public License for more details.
  2.1323 +
  2.1324 +    You should have received a copy of the GNU General Public License
  2.1325 +    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  2.1326 +
  2.1327 +Also add information on how to contact you by electronic and paper mail.
  2.1328 +
  2.1329 +  If the program does terminal interaction, make it output a short
  2.1330 +notice like this when it starts in an interactive mode:
  2.1331 +
  2.1332 +    <program>  Copyright (C) <year>  <name of author>
  2.1333 +    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
  2.1334 +    This is free software, and you are welcome to redistribute it
  2.1335 +    under certain conditions; type `show c' for details.
  2.1336 +
  2.1337 +The hypothetical commands `show w' and `show c' should show the appropriate
  2.1338 +parts of the General Public License.  Of course, your program's commands
  2.1339 +might be different; for a GUI interface, you would use an "about box".
  2.1340 +
  2.1341 +  You should also get your employer (if you work as a programmer) or school,
  2.1342 +if any, to sign a "copyright disclaimer" for the program, if necessary.
  2.1343 +For more information on this, and how to apply and follow the GNU GPL, see
  2.1344 +<http://www.gnu.org/licenses/>.
  2.1345 +
  2.1346 +  The GNU General Public License does not permit incorporating your program
  2.1347 +into proprietary programs.  If your program is a subroutine library, you
  2.1348 +may consider it more useful to permit linking proprietary applications with
  2.1349 +the library.  If this is what you want to do, use the GNU Lesser General
  2.1350 +Public License instead of this License.  But first, please read
  2.1351 +<http://www.gnu.org/philosophy/why-not-lgpl.html>.
     3.1 --- a/README-OSX.md	Thu Aug 24 17:35:04 2017 +0200
     3.2 +++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
     3.3 @@ -1,137 +0,0 @@
     3.4 -This file is under Creative Commons License 3.0 cc-by-sa
     3.5 -
     3.6 -# Building for OS X/macOS
     3.7 -See also README.txt for general information.
     3.8 -
     3.9 -For compiling pEp Engine and its dependencies, make sure you have the LANG variable set. Some source files contain unicode characters, and python (assuming files are ascii) will fail.
    3.10 -
    3.11 -```
    3.12 -export LANG=en_US.UTF-8
    3.13 -```
    3.14 -
    3.15 -## Dependencies
    3.16 -
    3.17 -### MacPorts
    3.18 -[Install MacPorts](https://www.macports.org/install.php) for your version of OS X/macOS.
    3.19 -
    3.20 -If MacPorts is already installed on your machine, but was installed by a different user, make sure your `PATH` variable is set as follows in `~/.profile`:
    3.21 -
    3.22 -```
    3.23 -export PATH="/opt/local/bin:/opt/local/sbin:$PATH"
    3.24 -```
    3.25 -
    3.26 -Install dependencies packaged with MacPorts as follows.
    3.27 -
    3.28 -```
    3.29 -sudo port install mercurial py27-lxml gpgme autoconf automake libtool asn1c zlib openssl libiconv cyrus-sasl2
    3.30 -```
    3.31 -
    3.32 -Make sure that `python` is a version 2 one:
    3.33 -
    3.34 -```
    3.35 -sudo port select python python27
    3.36 -```
    3.37 -
    3.38 -### NetPGP (if not GPGME)
    3.39 -
    3.40 -#### Prepare :
    3.41 -
    3.42 -Get OpenSSL and build/install it as shared library.
    3.43 -
    3.44 -```
    3.45 -wget https://www.openssl.org/source/old/1.0.1/openssl-1.0.1u.tar.gz
    3.46 -tar xvfz openssl-1.0.1u.tar.gz
    3.47 -cd openssl-1.0.1u
    3.48 -./Configure darwin64-x86_64-cc --prefix=$HOME shared
    3.49 -make install
    3.50 -```
    3.51 -
    3.52 -Get and autoconf NetPGP
    3.53 -
    3.54 -```
    3.55 -cd $SRC
    3.56 -hg clone https://cacert.pep.foundation/dev/repos/netpgp-et/
    3.57 -cd netpgp-et
    3.58 -autoreconf -i
    3.59 -```
    3.60 -
    3.61 -#### Build
    3.62 -
    3.63 -Important : LDFLAGS is set to help finding OpenSSL shared lib. If not set,
    3.64 -system's default libcrypto may silently be used instead, causing memory
    3.65 -corruption or crash at runtime.
    3.66 -
    3.67 -```
    3.68 -mkdir netpgp_debug
    3.69 -cd netpgp_debug
    3.70 -$SRC/netpgp-et/configure --with-openssl=$HOME --prefix=$HOME CPPFLAGS=-DDEBUG CXXFLAGS="-g -O0" LDFLAGS="-L${HOME}/lib"
    3.71 -make
    3.72 -make install
    3.73 -```
    3.74 -
    3.75 -### Other Dependecies
    3.76 -
    3.77 -#### [yml2](https://fdik.org/yml/toolchain)
    3.78 -Install into your home directory:
    3.79 -
    3.80 -```
    3.81 -pushd ~
    3.82 -hg clone https://cacert.pep.foundation/dev/repos/yml2/
    3.83 -popd
    3.84 -```
    3.85 -
    3.86 -#### libetpan
    3.87 -
    3.88 -Note: libetpan needs libz and libiconv, but the libiconv from MacPorts is not compatible, some
    3.89 -functions seem to have been renamed there. Therefore the dynlib from OS X is used.
    3.90 -
    3.91 -```
    3.92 -git clone https://github.com/fdik/libetpan
    3.93 -cd libetpan
    3.94 -./autogen.sh --prefix "$HOME"
    3.95 -make
    3.96 -make install
    3.97 -```
    3.98 -
    3.99 -## Building pEp Engine
   3.100 -
   3.101 -### Configuration
   3.102 -You can change some defaults by editing `Makefile.conf`. The following variable needs to be set appropriately:
   3.103 -
   3.104 -```
   3.105 -LIBGPGME=/opt/local/lib/libgpgme.11.dylib
   3.106 -```
   3.107 -
   3.108 -### Build
   3.109 -
   3.110 -```
   3.111 -make clean
   3.112 -make all
   3.113 -make db
   3.114 -```
   3.115 -
   3.116 -### Installation
   3.117 -
   3.118 -```
   3.119 -make install
   3.120 -sudo make -C db install
   3.121 -```
   3.122 -
   3.123 -Since the `system.db` rarely changes, the last step is not needed for every build. If you would like to be able to install the engine without `sudo`, ensure that your user can write the file `/usr/local/share/pEp/system.db`. This is not recommended for production machines.
   3.124 -
   3.125 -### Run tests
   3.126 -
   3.127 -If you installed the test keys in your keyring (see: README.txt), this should just work:
   3.128 -
   3.129 -```
   3.130 -cd test
   3.131 -make test
   3.132 -```
   3.133 -
   3.134 -# Building for iOS
   3.135 -
   3.136 -This is done with Xcode. Simply add `pEpEngine.xcodeproj` to
   3.137 -your project and add a dependency to the target `pEpEngine`
   3.138 -(in `Target Dependencies` in your `Build Phases`.
   3.139 -
   3.140 -Usually you just integrate `pEpiOSAdapter.xcodeproj`.
     4.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     4.2 +++ b/README.md	Mon Aug 28 14:32:46 2017 +0200
     4.3 @@ -0,0 +1,60 @@
     4.4 +<!-- Copyright 2015-2017, pEp foundation, Switzerland
     4.5 +This file is part of the pEp Engine
     4.6 +This file may be used under the terms of the Creative Commons Attribution-ShareAlike 3.0 Unported (CC BY-SA 3.0) License
     4.7 +See CC_BY-SA.txt -->
     4.8 +
     4.9 +# What is the p≡p Engine?
    4.10 +The p≡p Engine is a Free Software library encapsulating implementations of:
    4.11 +
    4.12 +- Key Management
    4.13 +
    4.14 +  Key Management in the p≡p Engine is based on GnuPG key chains (NetPGP on iOS).
    4.15 +  Keys are stored in an OpenPGP-compatible format, and can be used for different crypto implementations.
    4.16 +
    4.17 +- Trust Rating
    4.18 +
    4.19 +  The p≡p Engine sports a two phase trust rating system for messages:
    4.20 +  In phase one a rating is derived based on channel, crypto and key security.
    4.21 +  This is named "comm\_types".
    4.22 +  In phase two these ratings are mapped to user-representable values mimicking the semantics of a traffic light.
    4.23 +
    4.24 +- Abstract Crypto API
    4.25 +
    4.26 +  The Abstract Crypto API provides functions to encrypt and decrypt data or full messages, without requiring an application programmer to understand the different applied formats and standards.
    4.27 +
    4.28 +- Message Transports
    4.29 +
    4.30 +  The p≡p Engine will sport a growing list of message transports, to support any widespread text-based messaging system such as E-Mail, SMS, XMPP and many more.
    4.31 +
    4.32 +The p≡p Engine is written in C99 and is expected to run on any platform that conforms to the SUS/POSIX specification.
    4.33 +Selected non-SUS platforms are supported as well (such as Microsoft Windows).
    4.34 +
    4.35 +# How can I use the p≡p Engine?
    4.36 +Build instructions can be found in the "doc/" subfolder in this repository.
    4.37 +The p≡p Engine is not meant to be used in application code directly.
    4.38 +Instead, the p≡p Engine is meant to be used in conjunction with a so-called "adapter".
    4.39 +An adapter provides an API in a programming language that best accomodates developers in their respective software development ecosystem.
    4.40 +So, for example, a Java Native Interface adapter exists for development of apps for the Android mobile operating system, or a .NET adapter exists for development of applications on Microsoft Windows.
    4.41 +Various adapters are also available at the link provided for the p≡p Engine's code above.
    4.42 +
    4.43 +# What is the current state of the project?
    4.44 +The p≡p Engine is production-ready.
    4.45 +It is under active development by several full-time employees of the p≡p foundation and its partner organizations.
    4.46 +The most recent version of the source code can be obtained here: <https://cacert.pep.foundation/dev>.
    4.47 +This is the only offical way to obtain a copy of the source code.
    4.48 +
    4.49 +# I would like to contribute to the p≡p Engine or a realated project, where do I start?
    4.50 +First of all, excellent!
    4.51 +We'd love to dicuss this opportunity further with you.
    4.52 +Please contact the upstream developers to get started.
    4.53 +See the [Contact](#contact) section.
    4.54 +
    4.55 +# Legal notes
    4.56 +The p≡p Engine is Copyright 2015-2017 by p≡p foundation, Switzerland.
    4.57 +The source code of the p≡p Engine is licensed under the terms of the GNU General Public License version 3.
    4.58 +Accompanying documentation is licensed under the terms of the Creative Commons Attribution-ShareAlike 3.0 Unported (CC BY-SA 3.0) License.
    4.59 +Each file includes a notice near its beginning, that indicates the applicable license.
    4.60 +If you wish to license the p≡p Engine under different terms, please contact <mailto:council@pep.foundation>.
    4.61 +
    4.62 +# Contact
    4.63 +The p≡p foundation and the developers of the p≡p Engine can be reached as detailed here: <https://pep.foundation/contact-us/index.html>.
     5.1 --- a/README.txt	Thu Aug 24 17:35:04 2017 +0200
     5.2 +++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
     5.3 @@ -1,124 +0,0 @@
     5.4 -# this file is under Creative Commons License 3.0 cc-by-sa
     5.5 -
     5.6 -p≡p Engine
     5.7 -==========
     5.8 -
     5.9 -0. What it is
    5.10 --------------
    5.11 -
    5.12 -The p≡p engine is a Free Software library encapsulating implementations of:
    5.13 -
    5.14 -- Key Management
    5.15 -
    5.16 -  Key Management in p≡p engine is based on GnuPG key chains (NetPGP on iOS).
    5.17 -  Keys are stored in an OpenPGP compatbile format and can be used for different
    5.18 -  crypto implementations.
    5.19 -
    5.20 -- Trust Rating
    5.21 -
    5.22 -  p≡p engine is sporting a two phase trust rating system. In phase one there is
    5.23 -  a rating based on channel, crypto and key security named “comm_types”. In
    5.24 -  phase 2 these are mapped to user representable values which have attached
    5.25 -  colors to present them in traffic light semantics.
    5.26 -
    5.27 -- Abstract Crypto API
    5.28 -
    5.29 -  The Abstract Crypto API is providing functions to encrypt and decrypt data or
    5.30 -  full messages without requiring an application programmer to understand the
    5.31 -  different formats and standards.
    5.32 -
    5.33 -- Message Transports
    5.34 -
    5.35 -  p≡p engine will sport a growing list of Message Transports to support any
    5.36 -  widespread text messaging system including E-Mail, SMS, XMPP and many more.
    5.37 -
    5.38 -p≡p engine is written in C99. It is not meant to be used in application code
    5.39 -directly. Instead, p≡p engine is coming together with a list of software
    5.40 -adapters for a variety of programming languages and development environments.
    5.41 -
    5.42 -p≡p engine is under Gnu General Public License v3. If you want to use it under
    5.43 -a different license, please contact mailto:council@pep.foundation.
    5.44 -
    5.45 -
    5.46 -1. Dependencies
    5.47 ----------------
    5.48 -
    5.49 -p≡p engine is depending on the following FOSS libraries:
    5.50 -
    5.51 -* libetpan, see https://github.com/fdik/libetpan
    5.52 -       git clone https://github.com/fdik/libetpan
    5.53 -
    5.54 -* zlib, see http://zlib.net/
    5.55 -
    5.56 -* OpenSSL, see http://openssl.org/
    5.57 -
    5.58 -* iconv, see http://www.gnu.org/software/libiconv/
    5.59 -
    5.60 -* Cyrus SASL, see http://cyrusimap.org/
    5.61 -
    5.62 -* GnuPG via GPGME, version 1.6.0 or newer, see https://gnupg.org/
    5.63 -
    5.64 -* NetPGP/p≡p, see https://cacert.pep.foundation/dev/repos/netpgp-et/
    5.65 -
    5.66 -* Asn1c, download from https://lionet.info/soft/asn1c-0.9.27.tar.gz . Debian 8's v0.9.24 does not work. Debian 9's v0.9.27 generates non-POSIX code, that will cause issues when the engine is compiled with '-std=c99'. Thus, use v0.9.28 for best results.
    5.67 -
    5.68 -* yml2, which needs lxml (where to get?)
    5.69 -
    5.70 -2. Building p≡p engine
    5.71 -----------------------
    5.72 -
    5.73 -p≡p engine has an old style Makefile for building it.
    5.74 -
    5.75 -The build is configured in Makefile.conf
    5.76 -
    5.77 -It supports the common targets
    5.78 -
    5.79 -$ make all
    5.80 -$ make install
    5.81 -$ make clean
    5.82 -
    5.83 -and additionally
    5.84 -
    5.85 -$ make package # for building a .tar.bz2 with the source distribution
    5.86 -
    5.87 -On Windows, use Visual Studio.
    5.88 -
    5.89 -
    5.90 -3. How to cross-build
    5.91 ----------------------
    5.92 -
    5.93 -For cross-building, BUILD_FOR is being used. I.e.:
    5.94 -
    5.95 -$ BUILD_FOR=yourOS make -e
    5.96 -
    5.97 -
    5.98 -4. How to build the databases
    5.99 ------------------------------
   5.100 -
   5.101 -p≡p Engine uses two databases: ~/.pEp_management (on *NIX) or
   5.102 -%LOCALAPPDATA%\pEp\management.db on Windoze respectively, and
   5.103 -/usr/local/share/system.db on *NIX or %ALLUSERSPROFILE%\pEp\system.db
   5.104 -respectively. The latter contains the Trustwords dbs.
   5.105 -
   5.106 -The managment db is being created by the first call of init() of p≡p Engine. It
   5.107 -does not need to be created manually. system.db is being created by using the
   5.108 -DDL in db/create_system_db.sql – the content is created by db/dic2csv.py
   5.109 -out of hunspell's dictionary packages (or something similar) and then being
   5.110 -imported using sqlite3's .import command. Dictionary files for different
   5.111 -languages are part of p≡p engine source distribution.
   5.112 -
   5.113 -$ make db
   5.114 -$ make -C db install
   5.115 -
   5.116 -You can test the Trustwords in system.db using db/trustwords.py
   5.117 -Both Python tools have a switch --help
   5.118 -
   5.119 -
   5.120 -5. How to run the tests
   5.121 ------------------------
   5.122 -
   5.123 -You have to import all the test keys into your local gpg instance:
   5.124 -
   5.125 -	cd test
   5.126 -	cat 0x*.asc *_sec.asc| gpg --import
   5.127 -
     6.1 --- a/TODO.txt	Thu Aug 24 17:35:04 2017 +0200
     6.2 +++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
     6.3 @@ -1,8 +0,0 @@
     6.4 -# this file is in the Public Domain
     6.5 -
     6.6 -- add required Debian packages to build pEp (or where to find non-debian-packaged software, like "libetpan/mailmime_encode.h"
     6.7 -- add build instructions and required "brew" packages for Mac OS X.
     6.8 -- describe, how to configure pEpEngine to use self-compiled libetpan (in $HOME/local/ or the like)
     6.9 -- check if own key is good; if not: create a new keypair
    6.10 -- warning with forwarding former encrypted messages unencryptedly
    6.11 -
     7.1 --- a/build-config/common.conf	Thu Aug 24 17:35:04 2017 +0200
     7.2 +++ b/build-config/common.conf	Mon Aug 28 14:32:46 2017 +0200
     7.3 @@ -8,6 +8,7 @@
     7.4  
     7.5  ######### General #########
     7.6  BUILD_ON:=$(shell uname)
     7.7 +# This variable specifies the platform that the engine should be cross-compiled for.
     7.8  BUILD_FOR=$(BUILD_ON)
     7.9  # Installation path prefix for libraries and binaries, except for system.db
    7.10  PREFIX=$(HOME)
     8.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     8.2 +++ b/doc/README-OSX.md	Mon Aug 28 14:32:46 2017 +0200
     8.3 @@ -0,0 +1,137 @@
     8.4 +This file is under Creative Commons License 3.0 cc-by-sa
     8.5 +
     8.6 +# Building for OS X/macOS
     8.7 +See also README.txt for general information.
     8.8 +
     8.9 +For compiling pEp Engine and its dependencies, make sure you have the LANG variable set. Some source files contain unicode characters, and python (assuming files are ascii) will fail.
    8.10 +
    8.11 +```
    8.12 +export LANG=en_US.UTF-8
    8.13 +```
    8.14 +
    8.15 +## Dependencies
    8.16 +
    8.17 +### MacPorts
    8.18 +[Install MacPorts](https://www.macports.org/install.php) for your version of OS X/macOS.
    8.19 +
    8.20 +If MacPorts is already installed on your machine, but was installed by a different user, make sure your `PATH` variable is set as follows in `~/.profile`:
    8.21 +
    8.22 +```
    8.23 +export PATH="/opt/local/bin:/opt/local/sbin:$PATH"
    8.24 +```
    8.25 +
    8.26 +Install dependencies packaged with MacPorts as follows.
    8.27 +
    8.28 +```
    8.29 +sudo port install mercurial py27-lxml gpgme autoconf automake libtool asn1c zlib openssl libiconv cyrus-sasl2
    8.30 +```
    8.31 +
    8.32 +Make sure that `python` is a version 2 one:
    8.33 +
    8.34 +```
    8.35 +sudo port select python python27
    8.36 +```
    8.37 +
    8.38 +### NetPGP (if not GPGME)
    8.39 +
    8.40 +#### Prepare :
    8.41 +
    8.42 +Get OpenSSL and build/install it as shared library.
    8.43 +
    8.44 +```
    8.45 +wget https://www.openssl.org/source/old/1.0.1/openssl-1.0.1u.tar.gz
    8.46 +tar xvfz openssl-1.0.1u.tar.gz
    8.47 +cd openssl-1.0.1u
    8.48 +./Configure darwin64-x86_64-cc --prefix=$HOME shared
    8.49 +make install
    8.50 +```
    8.51 +
    8.52 +Get and autoconf NetPGP
    8.53 +
    8.54 +```
    8.55 +cd $SRC
    8.56 +hg clone https://cacert.pep.foundation/dev/repos/netpgp-et/
    8.57 +cd netpgp-et
    8.58 +autoreconf -i
    8.59 +```
    8.60 +
    8.61 +#### Build
    8.62 +
    8.63 +Important : LDFLAGS is set to help finding OpenSSL shared lib. If not set,
    8.64 +system's default libcrypto may silently be used instead, causing memory
    8.65 +corruption or crash at runtime.
    8.66 +
    8.67 +```
    8.68 +mkdir netpgp_debug
    8.69 +cd netpgp_debug
    8.70 +$SRC/netpgp-et/configure --with-openssl=$HOME --prefix=$HOME CPPFLAGS=-DDEBUG CXXFLAGS="-g -O0" LDFLAGS="-L${HOME}/lib"
    8.71 +make
    8.72 +make install
    8.73 +```
    8.74 +
    8.75 +### Other Dependecies
    8.76 +
    8.77 +#### [yml2](https://fdik.org/yml/toolchain)
    8.78 +Install into your home directory:
    8.79 +
    8.80 +```
    8.81 +pushd ~
    8.82 +hg clone https://cacert.pep.foundation/dev/repos/yml2/
    8.83 +popd
    8.84 +```
    8.85 +
    8.86 +#### libetpan
    8.87 +
    8.88 +Note: libetpan needs libz and libiconv, but the libiconv from MacPorts is not compatible, some
    8.89 +functions seem to have been renamed there. Therefore the dynlib from OS X is used.
    8.90 +
    8.91 +```
    8.92 +git clone https://github.com/fdik/libetpan
    8.93 +cd libetpan
    8.94 +./autogen.sh --prefix "$HOME"
    8.95 +make
    8.96 +make install
    8.97 +```
    8.98 +
    8.99 +## Building pEp Engine
   8.100 +
   8.101 +### Configuration
   8.102 +You can change some defaults by editing `Makefile.conf`. The following variable needs to be set appropriately:
   8.103 +
   8.104 +```
   8.105 +LIBGPGME=/opt/local/lib/libgpgme.11.dylib
   8.106 +```
   8.107 +
   8.108 +### Build
   8.109 +
   8.110 +```
   8.111 +make clean
   8.112 +make all
   8.113 +make db
   8.114 +```
   8.115 +
   8.116 +### Installation
   8.117 +
   8.118 +```
   8.119 +make install
   8.120 +sudo make -C db install
   8.121 +```
   8.122 +
   8.123 +Since the `system.db` rarely changes, the last step is not needed for every build. If you would like to be able to install the engine without `sudo`, ensure that your user can write the file `/usr/local/share/pEp/system.db`. This is not recommended for production machines.
   8.124 +
   8.125 +### Run tests
   8.126 +
   8.127 +If you installed the test keys in your keyring (see: README.txt), this should just work:
   8.128 +
   8.129 +```
   8.130 +cd test
   8.131 +make test
   8.132 +```
   8.133 +
   8.134 +# Building for iOS
   8.135 +
   8.136 +This is done with Xcode. Simply add `pEpEngine.xcodeproj` to
   8.137 +your project and add a dependency to the target `pEpEngine`
   8.138 +(in `Target Dependencies` in your `Build Phases`.
   8.139 +
   8.140 +Usually you just integrate `pEpiOSAdapter.xcodeproj`.
     9.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     9.2 +++ b/doc/README.txt	Mon Aug 28 14:32:46 2017 +0200
     9.3 @@ -0,0 +1,102 @@
     9.4 +# this file is under Creative Commons License 3.0 cc-by-sa
     9.5 +
     9.6 +1. Dependencies
     9.7 +---------------
     9.8 +
     9.9 +p≡p engine is depending on the following FOSS libraries:
    9.10 +
    9.11 +* a fork of libetpan, see https://github.com/fdik/libetpan
    9.12 +       git clone https://github.com/fdik/libetpan
    9.13 +
    9.14 +* zlib, see http://zlib.net/
    9.15 +Oh yeah? Where?
    9.16 +
    9.17 +* OpenSSL, see http://openssl.org/
    9.18 +Oh yeah? Where?
    9.19 +
    9.20 +* iconv, see http://www.gnu.org/software/libiconv/
    9.21 +
    9.22 +* Cyrus SASL, see http://cyrusimap.org/
    9.23 +Oh yeah? Where?
    9.24 +
    9.25 +* One of the following OpenPGP implementations:
    9.26 +  * GnuPG via GPGME, version 1.6.0 or newer, see https://gnupg.org/
    9.27 +  * NetPGP/p≡p, see https://cacert.pep.foundation/dev/repos/netpgp-et/
    9.28 +
    9.29 +* libcurl
    9.30 +Maybe on iOS?
    9.31 +
    9.32 +SQlite3
    9.33 +
    9.34 +
    9.35 +
    9.36 +
    9.37 +compile-time dependencies:
    9.38 +
    9.39 +* Asn1c, download from https://lionet.info/soft/asn1c-0.9.27.tar.gz . Debian 8's v0.9.24 does not work. Debian 9's v0.9.27 generates non-POSIX code, that will cause issues when the engine is compiled with '-std=c99'. Thus, use v0.9.28 for best results.
    9.40 +
    9.41 +* yml2, which needs lxml (where to get?)
    9.42 +
    9.43 +* One of the following build systems
    9.44 +  * GNU make
    9.45 +  * Visual Studio 2015
    9.46 +
    9.47 +
    9.48 +2. Building p≡p engine
    9.49 +----------------------
    9.50 +
    9.51 +p≡p engine has an old style Makefile for building it.
    9.52 +
    9.53 +The build is configured in Makefile.conf
    9.54 +
    9.55 +It supports the common targets
    9.56 +
    9.57 +$ make all
    9.58 +$ make install
    9.59 +$ make clean
    9.60 +
    9.61 +and additionally
    9.62 +
    9.63 +$ make package # for building a .tar.bz2 with the source distribution
    9.64 +
    9.65 +On Windows, use Visual Studio.
    9.66 +
    9.67 +
    9.68 +3. How to cross-build
    9.69 +---------------------
    9.70 +
    9.71 +For cross-building, BUILD_FOR is being used. I.e.:
    9.72 +
    9.73 +$ BUILD_FOR=yourOS make -e
    9.74 +
    9.75 +
    9.76 +4. How to build the databases
    9.77 +-----------------------------
    9.78 +
    9.79 +p≡p Engine uses two databases: ~/.pEp_management (on *NIX) or
    9.80 +%LOCALAPPDATA%\pEp\management.db on Windoze respectively, and
    9.81 +/usr/local/share/system.db on *NIX or %ALLUSERSPROFILE%\pEp\system.db
    9.82 +respectively. The latter contains the Trustwords dbs.
    9.83 +
    9.84 +The managment db is being created by the first call of init() of p≡p Engine. It
    9.85 +does not need to be created manually. system.db is being created by using the
    9.86 +DDL in db/create_system_db.sql – the content is created by db/dic2csv.py
    9.87 +out of hunspell's dictionary packages (or something similar) and then being
    9.88 +imported using sqlite3's .import command. Dictionary files for different
    9.89 +languages are part of p≡p engine source distribution.
    9.90 +
    9.91 +$ make db
    9.92 +$ make -C db install
    9.93 +
    9.94 +You can test the Trustwords in system.db using db/trustwords.py
    9.95 +Both Python tools have a switch --help
    9.96 +
    9.97 +
    9.98 +5. How to run the tests
    9.99 +-----------------------
   9.100 +
   9.101 +You have to import all the test keys into your local gpg instance:
   9.102 +
   9.103 +	cd test
   9.104 +	cat 0x*.asc *_sec.asc| gpg --import
   9.105 +
    10.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
    10.2 +++ b/doc/macports_env.sh	Mon Aug 28 14:32:46 2017 +0200
    10.3 @@ -0,0 +1,10 @@
    10.4 +# this file is in the Public Domain
    10.5 +
    10.6 +# Typical pure MacPorts environment
    10.7 +
    10.8 +# Restrict to MacPorts
    10.9 +export PATH=/opt/local/bin:/opt/local/sbin:/usr/bin:/bin:/usr/sbin:/sbin:/opt/X11/bin
   10.10 +
   10.11 +# Make sure the Apple python (which will be triggered by the makefile)
   10.12 +# has access to the Python libs installed for MacPorts
   10.13 +export PYTHONPATH=/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/
    11.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
    11.2 +++ b/doc/misc/cc-header.md	Mon Aug 28 14:32:46 2017 +0200
    11.3 @@ -0,0 +1,4 @@
    11.4 +<!-- Copyright 2015-2017, pEp foundation, Switzerland
    11.5 +This file is part of the pEp Engine
    11.6 +This file may be used under the terms of the Creative Commons Attribution-ShareAlike 3.0 Unported (CC BY-SA 3.0) License
    11.7 +See CC_BY-SA.txt -->
    12.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
    12.2 +++ b/doc/misc/gpl-header.txt	Mon Aug 28 14:32:46 2017 +0200
    12.3 @@ -0,0 +1,4 @@
    12.4 +Copyright 2015-2017, pEp foundation, Switzerland
    12.5 +This file is part of the pEp Engine
    12.6 +This file may be used under the terms of the GNU General Public License version 3
    12.7 +See LICENSE.txt
    13.1 --- a/macports_env.sh	Thu Aug 24 17:35:04 2017 +0200
    13.2 +++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
    13.3 @@ -1,16 +0,0 @@
    13.4 -# this file is in the Public Domain
    13.5 -
    13.6 -# Typical pure MacPorts environment
    13.7 -
    13.8 -# Restrict to MacPorts
    13.9 -export PATH=/opt/local/bin:/opt/local/sbin:/usr/bin:/bin:/usr/sbin:/sbin:/opt/X11/bin
   13.10 -
   13.11 -# Make sure the Apple python (which will be triggered by the makefile)
   13.12 -# has access to the Python libs installed for MacPorts
   13.13 -export PYTHONPATH=/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/
   13.14 -
   13.15 -# YML processing might complain about that. Make sure the locale exists (locale -a)
   13.16 -export LC_ALL=en_US.UTF-8
   13.17 -
   13.18 -# Search paths for includes used when doing YML processing
   13.19 -export YML_PATH=~/yml2/