1. add SceneBinary to 2.x
1.  add classname = "" log.
1.  remove Hungary style.
1.  remove hungary style.
2.  fixes build error.
issue #4892:Implement logical codes of game controller
issue #4892:Implement logical codes of game controller
issue #4895:Get events from controller to engine[ios]
issue #4895:Get events from controller to engine[android]
issue #4895:Get events from controller to engine[android]
issue #4895:Add test case
fix scrollview crashes on win32 because of variable returned without initialization
re add commented test case back
Fix Travis CI compilation issue
issue #4895:Add test case[ios]
Merge pull request #7246 from pandamicro/origin_v3

Fix Travis CI compilation issue
Merge branch 'v3' of https://github.com/cocos2d/cocos2d-x into v3-gc0630
fix focus functions
remove unnecessary file
Merge pull request #7227 from Dhilan007/v3-gc0627

Don't merge--issue #4689:Game controller support
[AUTO][ci skip]: updating cocos2dx_files.json