issue #3713: remove Object::_autoReleaseCount
issue #3713:invoke static member function to destroy singleone object
issue #3713: remove unneeded codes to fix compiling error
Merge https://github.com/cocos2d/cocos2d-x into iss3713-replace_CCObject
issue #3713:add test case for autorelease pool
closed #3713:add test case in vs project
Merge pull request #5132 from minggo/iss3713-replace_CCObject

remove Object::_autoReleaseCount