Fixed #5702: Fixed UIButton FuzzyKey surrounding blur
Merge pull request #2067 from VisualSJ/develop-rc2

Fixed #5702: Fixed UIButton FuzzyKey surrounding blur
Merge pull request #2068 from pandamicro/develop

Issue #5781: Update ENGINE_VERSION and refactor some deprecated function usages
Fixed #5781: fixed a bug of ccui.Layout
Merge branch 'develop' of git://github.com/cocos2d/cocos2d-html5 into Iss5781_ReleaseV3rc2
Merge pull request #2069 from dingpinglv/Iss5781_ReleaseV3rc2

Fixed #5781: fixed a bug of ccui.Layout
Fixed #5781: fixed a bug of cc.ClippingNode
Merge branch 'develop' of git://github.com/cocos2d/cocos2d-html5 into Iss5781_ReleaseV3rc2
Merge pull request #2070 from dingpinglv/Iss5781_ReleaseV3rc2

Fixed #5781: fixed a bug of cc.ClippingNode
Fixed #5798: UIText clone error
Merge pull request #2071 from VisualSJ/develop-rc2

Fixed #5798: UIText clone error
Fixed #2046: the param model miss "l".
Merge pull request #2072 from VisualSJ/develop-rc2

Fixed #2046: the param model miss "l".
Fixed #5781: update the Authors
Merge branch 'develop' of git://github.com/cocos2d/cocos2d-html5 into Iss5781_ReleaseV3rc2
Merge pull request #2073 from dingpinglv/Iss5781_ReleaseV3rc2

Fixed #5781: update the Authors for v3.0 rc2
Increased while cycle maximum ceiling. default 100 time
Merge pull request #2074 from VisualSJ/develop-rc2

Increased while cycle maximum ceiling. default 100 time
Fixed #5781: update the build.xml for v3.0 rc2
Merge branch 'develop' of git://github.com/cocos2d/cocos2d-html5 into Iss5781_ReleaseV3rc2