Apache v2 License

Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/

TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION

1. Definitions.

"License" shall mean the terms and conditions for use, reproduction, and 
distribution as defined by Sections 1 through 9 of this document.

"Licensor" shall mean the copyright owner or entity authorized by the copyright 
owner that is granting the License.

"Legal Entity" shall mean the union of the acting entity and all other entities 
that control, are controlled by, or are under common control with that entity. 
For the purposes of this definition, "control" means (i) the power, direct or 
indirect, to cause the direction or management of such entity, whether by 
contract or otherwise, or (ii) ownership of fifty percent (50%) or more of the 
outstanding shares, or (iii) beneficial ownership of such entity.

"You" (or "Your") shall mean an individual or Legal Entity exercising 
permissions granted by this License.

"Source" form shall mean the preferred form for making modifications, including 
but not limited to software source code, documentation source, and configuration
files.

"Object" form shall mean any form resulting from mechanical transformation or 
translation of a Source form, including but not limited to compiled object code,
generated documentation, and conversions to other media types.

"Work" shall mean the work of authorship, whether in Source or Object form, made
available under the License, as indicated by a copyright notice that is included
in or attached to the work (an example is provided in the Appendix below).

"Derivative Works" shall mean any work, whether in Source or Object form, that 
is based on (or derived from) the Work and for which the editorial revisions, 
annotations, elaborations, or other modifications represent, as a whole, an 
original work of authorship. For the purposes of this License, Derivative Works 
shall not include works that remain separable from, or merely link (or bind by 
name) to the interfaces of, the Work and Derivative Works thereof.

"Contribution" shall mean any work of authorship, including the original version
of the Work and any modifications or additions to that Work or Derivative Works 
thereof, that is intentionally submitted to Licensor for inclusion in the Work 
by the copyright owner or by an individual or Legal Entity authorized to submit 
on behalf of the copyright owner. For the purposes of this definition, 
"submitted" means any form of electronic, verbal, or written communication sent 
to the Licensor or its representatives, including but not limited to 
communication on electronic mailing lists, source code control systems, and 
issue tracking systems that are managed by, or on behalf of, the Licensor for 
the purpose of discussing and improving the Work, but excluding communication 
that is conspicuously marked or otherwise designated in writing by the copyright
owner as "Not a Contribution."

"Contributor" shall mean Licensor and any individual or Legal Entity on behalf 
of whom a Contribution has been received by Licensor and subsequently 
incorporated within the Work.

2. Grant of Copyright License.

Subject to the terms and conditions of this License, each Contributor hereby 
grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, 
irrevocable copyright license to reproduce, prepare Derivative Works of, 
publicly display, publicly perform, sublicense, and distribute the Work and such
Derivative Works in Source or Object form.

3. Grant of Patent License.

Subject to the terms and conditions of this License, each Contributor hereby 
grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, 
irrevocable (except as stated in this section) patent license to make, have 
made, use, offer to sell, sell, import, and otherwise transfer the Work, where 
such license applies only to those patent claims licensable by such Contributor 
that are necessarily infringed by their Contribution(s) alone or by combination 
of their Contribution(s) with the Work to which such Contribution(s) was 
submitted. If You institute patent litigation against any entity (including a 
cross-claim or counterclaim in a lawsuit) alleging that the Work or a 
Contribution incorporated within the Work constitutes direct or contributory 
patent infringement, then any patent licenses granted to You under this License 
for that Work shall terminate as of the date such litigation is filed.

4. Redistribution.

You may reproduce and distribute copies of the Work or Derivative Works thereof 
in any medium, with or without modifications, and in Source or Object form, 
provided that You meet the following conditions:

You must give any other recipients of the Work or Derivative Works a copy of 
this License; and
You must cause any modified files to carry prominent notices stating that You 
changed the files; and
You must retain, in the Source form of any Derivative Works that You distribute,
all copyright, patent, trademark, and attribution notices from the Source form 
of the Work, excluding those notices that do not pertain to any part of the 
Derivative Works; and
If the Work includes a "NOTICE" text file as part of its distribution, then any 
Derivative Works that You distribute must include a readable copy of the 
attribution notices contained within such NOTICE file, excluding those notices 
that do not pertain to any part of the Derivative Works, in at least one of the 
following places: within a NOTICE text file distributed as part of the 
Derivative Works; within the Source form or documentation, if provided along 
with the Derivative Works; or, within a display generated by the Derivative 
Works, if and wherever such third-party notices normally appear. The contents of
the NOTICE file are for informational purposes only and do not modify the 
License. You may add Your own attribution notices within Derivative Works that 
You distribute, alongside or as an addendum to the NOTICE text from the Work, 
provided that such additional attribution notices cannot be construed as 
modifying the License.
You may add Your own copyright statement to Your modifications and may provide 
additional or different license terms and conditions for use, reproduction, or 
distribution of Your modifications, or for any such Derivative Works as a whole,
provided Your use, reproduction, and distribution of the Work otherwise complies
with the conditions stated in this License.

5. Submission of Contributions.

Unless You explicitly state otherwise, any Contribution intentionally submitted 
for inclusion in the Work by You to the Licensor shall be under the terms and 
conditions of this License, without any additional terms or conditions. 
Notwithstanding the above, nothing herein shall supersede or modify the terms of
any separate license agreement you may have executed with Licensor regarding 
such Contributions.

6. Trademarks.

This License does not grant permission to use the trade names, trademarks, 
service marks, or product names of the Licensor, except as required for 
reasonable and customary use in describing the origin of the Work and 
reproducing the content of the NOTICE file.

7. Disclaimer of Warranty.

Unless required by applicable law or agreed to in writing, Licensor provides the
Work (and each Contributor provides its Contributions) on an "AS IS" BASIS, 
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied, 
including, without limitation, any warranties or conditions of TITLE, 
NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A PARTICULAR PURPOSE. You are 
solely responsible for determining the appropriateness of using or 
redistributing the Work and assume any risks associated with Your exercise of 
permissions under this License.

8. Limitation of Liability.

In no event and under no legal theory, whether in tort (including negligence), 
contract, or otherwise, unless required by applicable law (such as deliberate 
and grossly negligent acts) or agreed to in writing, shall any Contributor be 
liable to You for damages, including any direct, indirect, special, incidental, 
or consequential damages of any character arising as a result of this License or
out of the use or inability to use the Work (including but not limited to 
damages for loss of goodwill, work stoppage, computer failure or malfunction, or
any and all other commercial damages or losses), even if such Contributor has 
been advised of the possibility of such damages.

9. Accepting Warranty or Additional Liability.

While redistributing the Work or Derivative Works thereof, You may choose to 
offer, and charge a fee for, acceptance of support, warranty, indemnity, or 
other liability obligations and/or rights consistent with this License. However,
in accepting such obligations, You may act only on Your own behalf and on Your 
sole responsibility, not on behalf of any other Contributor, and only if You 
agree to indemnify, defend, and hold each Contributor harmless for any liability
incurred by, or claims asserted against, such Contributor by reason of your 
accepting any such warranty or additional liability.

END OF TERMS AND CONDITIONS

APPENDIX: How to apply the Apache License to your work

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   Copyright [yyyy] [name of copyright owner]

   Licensed under the Apache License, Version 2.0 (the "License");
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