Fix a texture problem when loading PVR image

Fix a bug which causes current texture changed when loading a PVR image with GLStateCache enabled.
export Cocos2dxActivity frame layout for derived classes
fixed path to zlib
fixed path to zlib
fixed path to zlib
updated key file
fixed path to zlib
Merge pull request #7364 from MSOpenTech/wp8-v2-fix

WP8 v2 fix for zlib include path
fixed crash cause by incorrect font name.
Merge pull request #7369 from Dhilan007/v2

fixed crash cause by incorrect font name.
fixed hidden array index overflow.
udpate hd  csbs
Merge pull request #7372 from geron-cn/chukongv2

fix cpp-test csb crash in hd res
Merge pull request #2 from cocos2d/v2

merge V2
fixed bugs:
Merge pull request #7370 from Dhilan007/v2

fixed hidden array index overflow in CCImage.cpp.
Merge pull request #7374 from Dhilan007/v2-225

fixed bugs:set incorrect font for LabelTTF in 'LabelReader::setPropsFromBinary'
Win32 v2 fix for zlib include path.
fix watermelonwithme compile error
Merge pull request #7375 from Dhilan007/v2-225

Win32 v2 fix for zlib include path.