Users Guide

You may not propagate or modify a covered work except as expressly provided under this License. Any attempt otherwise to
propagate or modify it is void, and will automatically terminate your rights under this License (including any patent licenses
granted under the third paragraph of section 11). However, if you cease all violation of this License, then your license from a
particular copyright holder is reinstated (a) provisionally, unless and until the copyright holder explicitly and finally terminates
your license, and (b) permanently, if the copyright holder fails to notify you of the violation by some reasonable means prior
to 60 days after the cessation. Moreover, your license from a particular copyright holder is reinstated permanently if the
copyright holder notifies you of the violation by some reasonable means, this is the first time you have received notice of
violation of this License (for any work) from that copyright holder, and you cure the violation prior to 30 days after your
receipt of the notice. Termination of your rights under this section does not terminate the licenses of parties who have
received copies or rights from you under this License. If your rights have been terminated and not permanently reinstated,
you do not qualify to receive new licenses for the same material under section 10.
9. Acceptance Not Required for Having Copies.
You are not required to accept this License in order to receive or run a copy of the Program. Ancillary propagation of a
covered work occurring solely as a consequence of using peer-to-peer transmission to receive a copy likewise does not
require acceptance. However, nothing other than this License grants you permission to propagate or modify any covered
work. These actions infringe copyright if you do not accept this License. Therefore, by modifying or propagating a covered
work, you indicate your acceptance of this License to do so.
10. Automatic Licensing of Downstream Recipients.
Each time you convey a covered work, the recipient automatically receives a license from the original licensors, to run,
modify and propagate that work, subject to this License. You are not responsible for enforcing compliance by third parties
with this License. An “entity transaction” is a transaction transferring control of an organization, or substantially all assets
of one, or subdividing an organization, or merging organizations. If propagation of a covered work results from an entity
transaction, each party to that transaction who receives a copy of the work also receives whatever licenses to the work
the party's predecessor in interest had or could give under the previous paragraph, plus a right to possession of the
Corresponding Source of the work from the predecessor in interest, if the predecessor has it or can get it with reasonable
efforts. You may not impose any further restrictions on the exercise of the rights granted or affirmed under this License. For
example, you may not impose a license fee, royalty, or other charge for exercise of rights granted under this License, and you
may not initiate litigation (including a cross-claim or counterclaim in a lawsuit) alleging that any patent claim is infringed by
making, using, selling, offering for sale, or importing the Program or any portion of it.
11. Patents.
A “contributor” is a copyright holder who authorizes use under this License of the Program or a work on which the Program
is based. The work thus licensed is called the contributor's “contributor version”. A contributor's “essential patent claims”
are all patent claims owned or controlled by the contributor, whether already acquired or hereafter acquired, that would be
infringed by some manner, permitted by this License, of making, using, or selling its contributor version, but do not include
claims that would be infringed only as a consequence of further modification of the contributor version. For purposes of
this definition, “control” includes the right to grant patent sublicenses in a manner consistent with the requirements of
this License. Each contributor grants you a non-exclusive, worldwide, royalty-free patent license under the contributor's
essential patent claims, to make, use, sell, offer for sale, import and otherwise run, modify and propagate the contents of its
contributor version. In the following three paragraphs, a “patent license” is any express agreement or commitment, however
denominated, not to enforce a patent (such as an express permission to practice a patent or covenant not to sue for patent
infringement). To “grant” such a patent license to a party means to make such an agreement or commitment not to enforce
a patent against the party. If you convey a covered work, knowingly relying on a patent license, and the Corresponding
Source of the work is not available for anyone to copy, free of charge and under the terms of this License, through a publicly
available network server or other readily accessible means, then you must either (1) cause the Corresponding Source to be
so available, or (2) arrange to deprive yourself of the benefit of the patent license for this particular work, or (3) arrange,
in a manner consistent with the requirements of this License, to extend the patent license to downstream recipients.
“Knowingly relying” means you have actual knowledge that, but for the patent license, your conveying the covered work in
a country, or your recipient's use of the covered work in a country, would infringe one or more identifiable patents in that
country that you have reason to believe are valid. If, pursuant to or in connection with a single transaction or arrangement,
you convey, or propagate by procuring conveyance of, a covered work, and grant a patent license to some of the parties
receiving the covered work authorizing them to use, propagate, modify or convey a specific copy of the covered work, then
the patent license you grant is automatically extended to all recipients of the covered work and works based on it. A patent
license is “discriminatory” if it does not include within the scope of its coverage, prohibits the exercise of, or is conditioned
on the non-exercise of one or more of the rights that are specifically granted under this License. You may not convey a
covered work if you are a party to an arrangement with a third party that is in the business of distributing software, under
which you make payment to the third party based on the extent of your activity of conveying the work, and under which the
third party grants, to any of the parties who would receive the covered work from you, a discriminatory patent license (a) in
connection with copies of the covered work conveyed by you (or copies made from those copies), or (b) primarily for and in
connection with specific products or compilations that contain the covered work, unless you entered into that arrangement,
or that patent license was granted, prior to 28 March 2007. Nothing in this License shall be construed as excluding or limiting
any implied license or other defenses to infringement that may otherwise be available to you under applicable patent law.
Third party licenses
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