Modify the min sdk version of android platform required in plugin samples.
Modify the target version of plugin samples to android-10.
issue #2305: Using std::thread instead of pthread for ScriptingCore.
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 ccx_filesystem
issue #2334, Update the SDK of ND91 to newest version.
Merge pull request #3000 from natural-law/develop

Add ProtocolUser for user system.
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-x into develop
issue #2313: Opens stencil for TestJavascript.
issue #2313: Ignores `visit` and exposes ClippingNode to JS. [Not finished]
Only skip ^visit$
Merge pull request #3007 from dumganhar/iss2313-bind-clipnode

issue #2313: Exposing cc.ClippingNode to JS.[Not finished]
issue #2329: remove unneeded codes
Fixing travis errors for generating JSB glue codes.
Merge pull request #3009 from dumganhar/travis-jsb-fix

Fixing travis errors for generating JSB glue codes.