Added copylight text.

Refined examples.

example/cpp03/speed_test.cpp

@@ -1,3 +1,20 @@
+// MessagePack for C++ example
+//
+// Copyright (C) 2013-2015 KONDO Takatoshi
+//
+//    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.
+//
+
 // g++ -std=c++11 -O3 -g -Ipath_to_msgpack_src -Ipath_to_boost speed_test.cc -Lpath_to_boost_lib -lboost_timer -lboost_system
 // export LD_LIBRARY_PATH=path_to_boost_lib
 
@@ -52,4 +69,3 @@ int main(void)
 {
     test_map_pack_unpack();
 }
-