Add emscripten support for Windows Host
Merge pull request #5090 from martell/emscripten

closed #3749: Add emscripten support for Windows Host
Update CHANGELOG [ci skip]
Update AUTHORS [ci skip]
close #3754:The lua's binding of the CCComponent class and the releated functions were missing
Merge pull request #5112 from samuele3hu/masterFix

close #3754:The lua's binding of the CCComponent class and the releated functions were missing
Update CHANGELOG [ci skip]
Merge branch 'master' of git://github.com/cocos2d/cocos2d-x into InvokeUISystem