issue #2305:remove unneeded comment
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-x into iss2305-replace-pthread
issue #2305:use c++11 thread correctly
issue #2305: sched_yield(); --> std::this_thread::yield();
closed #2305: fix a running time error
Merge pull request #3005 from dumganhar/iss2305-std-thread

issue #2305: Using std::thread instead of pthread for ScriptingCore.
Merge pull request #3006 from minggo/iss2305-replace-pthread

fix some errors of c++11 thread usage in CCTextureCache
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-x into metalpasman-develop