                                 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 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
      transformations 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, as submitted to the 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, "submit" 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
      improvements to 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 Legal Entity on behalf of
      whom a Contribution has been received by the Licensor and included
      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 the combined 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 any patent claim embodied in 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,
          You must include a readable copy of the attribution notices contained
          within such NOTICE file, 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 addition 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 license statement for Your modifications and may
      provide additional grant of rights to use, copy, modify, merge, publish,
      distribute, sublicense, and/or sell copies of the Modifications, and to
      permit persons to whom the Software is furnished to do so.

   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 reproducing 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 exemplary 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 all other
      commercial damages or losses), even if such Contributor has been advised of
      the possibility of such damages.

   9. Accepting Warranty or Indemnifying a Third Party. 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 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, with the fields enclosed by brackets "[]" replaced with your own
      identifying information. (Don't include the brackets!) The text should be
      enclosed in the appropriate comment syntax for the programming language
      concerned.

   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.
