Move license to a separate file

This is done to follow Fedora guidelines:
https://fedoraproject.org/wiki/Packaging:LicensingGuidelines#License_Text

Also rename the Python license used in the docs to python-license.txt to
avoid confusing extension.

LICENSE.rst

@@ -0,0 +1,23 @@
+Copyright (c) 2012 - 2015, Victor Zverovich
+
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice, this
+   list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright notice,
+   this list of conditions and the following disclaimer in the documentation
+   and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

README.rst

@@ -48,7 +48,8 @@ Features
   reported using exceptions, automatic memory management prevents buffer
   overflow errors.
 * Ease of use: small self-contained code base, no external dependencies,
-  permissive BSD `license`_.
+  permissive BSD `license
+  <https://raw.github.com/cppformat/cppformat/master/LICENSE.rst>`_
 * `Portability <http://cppformat.github.io#portability>`_ with consistent output
   across platforms and support for older compilers.
 * Clean warning-free codebase even on high warning levels
@@ -373,32 +374,8 @@ or the bloat test::
 License
 -------
 
-Copyright (c) 2012 - 2015, Victor Zverovich
+C++ Format is distributed under the BSD `license
-
+<https://raw.github.com/cppformat/cppformat/master/LICENSE.rst>`_.
-All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions are met:
-
-1. Redistributions of source code must retain the above copyright notice, this
-   list of conditions and the following disclaimer.
-2. Redistributions in binary form must reproduce the above copyright notice,
-   this list of conditions and the following disclaimer in the documentation
-   and/or other materials provided with the distribution.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
-ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
-ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
-ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-Documentation License
----------------------
 
 The `Format String Syntax
 <http://cppformat.readthedocs.org/en/latest/syntax.html>`_
@@ -407,7 +384,7 @@ documentation <http://docs.python.org/3/library/string.html#module-string>`_
 adapted for the current library. For this reason the documentation is
 distributed under the Python Software Foundation license available in
 `doc/LICENSE.python
-<https://raw.github.com/cppformat/cppformat/master/doc/LICENSE.python>`_.
+<https://raw.github.com/cppformat/cppformat/master/doc/python-license.txt>`_.
 
 Acknowledgments
 ---------------