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Apache License 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 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:

      (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 attribution notices
          from the Source form of the Work, excluding those notices that do not
          pertain to any part of 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 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 where 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