stab at patching cocos to fix up the async texture loading. Fix for calling back on different frames and redundant loading of textures from disk.
Added better async support for PVRs
Added locking around ZipFile
Include pthread
Consistency by design
Fixed double deletion of PVRs
Allow multiple requests for one file
Merge branch 'gles20-reorg' of github.com:brooklynpacket/cocos2d-x into fg-async
Merge branch 'gles20-reorg' of github.com:brooklynpacket/cocos2d-x into fg-async
Merge remote branch 'origin/fg-async' into gles20-reorg