Merge pull request #748 from pandamicro/develop

Fix issues
Improve docs
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-js into develop
Update the reference of submodule cocos2d-console.
Merge pull request #751 from natural-law/develop

Update the reference of submodule cocos2d-console.
Refactor #5886: update facebook testcase
issue #5889: update travis ndk to r9d
Issue #5890: update tojs .ini files to fit ndk r9d
Merge pull request #754 from joshuastray/develop

Refactor #5886: update facebook testcase
issue #5893: fix genbindings.py bug on windows
issue #5893: delete spaces
Refactor #5886 change Facebook test Case
Merge pull request #756 from wuzhiming/fb_3rd

Refactor #5886 change Facebook test Case
Merge pull request #755 from joshuastray/develop

issue #5893: fix genbindings.py bug on windows
Fixed #5891: add cc.Layer's bake/unbake/isBaked function in JSB
Remove useless constant
Fixed #5882: Move EventAssetsManager/EventListenerAssetsManager to jsb namespace
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-js into develop
fixed menuItemImage color can't change bug
Merge pull request #758 from wuzhiming/fb_3rd

fixed menuItemImage color can't change bug