Apache License
==============

[Version 2.0, January 2004](http://www.apache.org/licenses/LICENSE-2.0.html)

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:

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

2. You must cause any modified files to carry prominent notices stating
   that You changed the files; and

3. 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

4. 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.