COPYING

Apache License, Version 2.0

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
To apply the Apache License to your work, attach the following boilerplate notice, 
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appropriate comment syntax for the file format. We also recommend that a file or class 
name and description of purpose be included on the same "printed page" as the 
copyright notice for easier identification within third-party archives.

   Copyright [yyyy] [name of copyright owner]

   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.
   You may obtain a copy of the License at

       http://www.apache.org/licenses/LICENSE-2.0

   Unless required by applicable law or agreed to in writing, software
   distributed under the License is distributed on an "AS IS" BASIS,
   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   See the License for the specific language governing permissions and
   limitations under the License.