Update js_bindings_ccbreader.cpp

owner can equal null when ccbreader load a file
[JSB] Adds triggers jsbinding for master branch.
Merge pull request #4770 from dumganhar/master-ccs-trigger-jsb

[JSB] Adds cocostudio trigger jsbinding for master branch.
Resolve some spell errors and a bug that didn’t remove actions in the CocoStudioSceneTest
fix miss binding for cocostudio-gui change.
Rename some common script files to keep consistent
Merge pull request #4785 from Dhilan007/master_studio

fix miss binding for cocostudio-gui change.
Merge pull request #4333 from hbbalfred/master

close #3564: cc.BuilderReader.load( path, null, parentSize ); was not allowed
Update AUTHORS [ci skip]
Update CHANGELOG [ci skip]
[AUTO] : updating submodule reference to latest autogenerated bindings
Merge pull request #4788 from CocosRobot/updategeneratedsubmodule_1388649079

[AUTO] : updating submodule reference to latest autogenerated bindings
Rename Cocos2dStudio.lua to CocoStudio.lua
Merge pull request #4780 from samuele3hu/masterFix

Resolve some spell errors and a bug that didn’t remove actions in the CocoStudioSceneTest
Merge branch 'master' into #3478