Merge pull request #289 from xingsenma/master

issue #3419 update UIListViewTest and UINodeContainerTest
Issue #3501: reverting CocosDenshionTest to keep it simple.
Merge pull request #292 from dingpinglv/Iss3501_ReleasingV2.2.2

Issue #3501: reverting CocosDenshionTest to keep it simple.
Merge pull request #294 from xingsenma/master

issue #3419 update cocostudio scene test
issue #3419 fix bug for TriggerTest.