Keywords: Apache, license

# License

#### The Apache License, Version 2.0

                                   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
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          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
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          that are managed by, or on behalf of, the Licensor for the
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          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
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          distribute the Work and such Derivative Works in Source or
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       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
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          that the Work or a Contribution incorporated within the Work
          constitutes direct or contributory patent infringement, then any
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          shall terminate as of the date such litigation is filed.

       4. Redistribution. You may reproduce and distribute copies of the
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          modifications, and in Source or Object form, provided that You
          meet the following conditions:

          (a) You must give any other recipients of the Work or
              Derivative Works a copy of this License; and

          (b) You must cause any modified files to carry prominent notices
              stating that You changed the files; and

          (c) You must retain, in the Source form of any Derivative Works
              that You distribute, all copyright, patent, trademark, and
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              the Derivative Works; and

          (d) If the Work includes a "NOTICE" text file as part of its
              distribution, then any Derivative Works that You distribute
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              You may add Your own attribution notices within Derivative
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          You may add Your own copyright statement to Your modifications
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          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
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          WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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       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,
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          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
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       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
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          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, with the fields enclosed by brackets "[]"
          replaced with your own identifying information. (Don't include
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          same "printed page" as the copyright notice for easier
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       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.