fix mingw32/mingw64 compiling
Update README.md in tools/tolua
Merge pull request #6912 from John-He-928/mingw-build

fix mingw32/mingw64 compiling
Update lua-template and lua-empty-test for replacing bgMusicPath
Merge branch 'v3' of https://github.com/cocos2d/cocos2d-x into v3_fix
Merge pull request #6913 from samuele3hu/v3_fix

Update lua-template and lua-empty-test for replacing bgMusicPath
refactor UILayoutExecutant to LayoutManager
rename UILayout
Executant.h to UILayoutManager.h
Update lua-template and lua-empty-test for replacing bgMusicPath
Merge branch 'v3' of https://github.com/cocos2d/cocos2d-x into v3_fix
Merge pull request #6915 from samuele3hu/v3_fix

Update lua-template and lua-empty-test for replacing bgMusicPath
Merge pull request #6914 from andyque/refactorLayoutExecutant

refactor:  rename UILayoutExecutant to UILayoutManager
[AUTO][ci skip]: updating cocos2dx_files.json
Merge pull request #6917 from CocosRobot/update_cocosfiles_1401256188

[AUTO][ci skip]: updating cocos2dx_files.json
remove keyboard notifications from NSNotificationCenter
invalidate NSTimer instance in destroy to prevent memory leak
Merge pull request #6918 from minggo/fix-object-leak

Fix NSNotificationCenter and NSTimer leaks
[ci skip]
coding style fix
Merge pull request #6921 from minggo/code-fix

coding style fix