arm64 support
Merge branch 'develop' into arm64
Disables  arm64 for the moment
Enables more warnings in Xcode project
removes Hungarian notation

from CCACtionManager and fixes some 64-bit issues.
Fixes some compiler warnings

The warnings are related to:

* 64-to-32-bit conversion
* shadow variables
Merge commit 'refs/pull/4086/head' of git://github.com/cocos2d/cocos2d-x into riq-arm64
Changes the touch id declaration from int to long.
Merge pull request #4090 from dumganhar/riq-arm64

Fix compilation error in PR #4086
Update CHNAGELOG[ci skip]
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-x into developCCS