Fixed bugs and memory leak
Merge branch 'develop' into develop_nutty_modify_framework_fixedmemleak
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-x into new_label
Merge branch 'develop' into develop_nutty_modify_framework_fixedmemleak
Modify wrong codes
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-x into new_label
Merge pull request #4913 from nutty898/develop_nutty_modify_framework_fixedmemleak

Develop nutty modify framework fixedmemleak
Merge pull request #4916 from minggo/develop

Fix a crash of particle test
Add Trigger code to sceneTest on cocos2dx 3.x.
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-x into new_label
Merge pull request #4918 from minggo/develop

don't assign last element with (null, null)
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-x into new_label
Merge pull request #4919 from minggo/develop

don't release autoreleased objec
Merge pull request #4917 from chengstory/AddTriggerCode

Add Trigger code to sceneTest on cocos2dx 3.x.
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-x into new_label
Merge pull request #4920 from minggo/develop

don't rlease autoreleased object
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-x into new_label
fix crash in TouchesTest.cpp on vs
Merge pull request #4922 from Dhilan007/develop_crash

fix crash in TouchesTest.cpp on vs
fix crash in NewEventDispatcherTest.cpp on vs