Add `addConsoleHandler` in the ScriptHandlerMgr for Console autotest.
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-x into develop_script_mgr
Rename `addConsoleHandler` to `addCustomHandler`
close #4452:Add `addCustomHandler` in the ScriptHandlerMgr for Console auto test.
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-x into develop_script_mgr
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-x into develop_script_mgr
close #4452:Using better spelling format
close #4452:Make `addCustomHandler` more distinct
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-x into develop_script_mgr
Merge pull request #5862 from samuele3hu/develop_script_mgr

closed #4452: Adds `addCustomHandler` in the ScriptHandlerMgr for Console auto test.