Version 1.3.0.

Updated the license from the license from the Apache License Version 2.0
to the Boost Software License, Version 1.0.
Removed unused files.

include/msgpack.h

@@ -3,17 +3,9 @@
  *
  * Copyright (C) 2008-2009 FURUHASHI Sadayuki
  *
- *    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.
+ *    Distributed under the Boost Software License, Version 1.0.
+ *    (See accompanying file LICENSE_1_0.txt or copy at
+ *    http://www.boost.org/LICENSE_1_0.txt)
  */
 /**
  * @defgroup msgpack MessagePack C