Merge pull request #7587 from dzl-ian/fixTextWidgetColor

Add getter and setter for TextColor to Text Widget
[AUTO][ci skip]: updating cocos2dx_files.json
[ci skip]
[ci skip]
[AUTO]: updating luabinding automatically
Merge pull request #7640 from CocosRobot/update_cocosfiles_1406865528

[AUTO][ci skip]: updating cocos2dx_files.json
Merge pull request #7641 from CocosRobot/update_lua_bindings_1406865618

[AUTO]: updating luabinding automatically