Update README.md
Merge pull request #1039 from thayerandrews/develop

CCEffectLighting - Various fixes
Cleaning up warnings.
CCPhysicsBody sleeping fixes and tests.
Merge branch 'develop' of github.com:cocos2d/cocos2d-iphone into develop
Transition fixes for fixed screen mode. Wasn’t setting projections on the render textures.
Merge branch 'v3.1' into v3.2
Merge branch 'v3.2' of github.com:cocos2d/cocos2d-iphone into v3.2
Merge branch 'v3.2' into develop

Conflicts:
	cocos2d/CCTransition.m
	external/ObjectAL
Removed some warnings.
Enabled "Combine High Resolution Artwork" for project settings.
Logging warning removed with correct placeholders.
Merge pull request #1041 from NickyWeber/bugfix/sb_#1050_remove_warnings

Removed some warnings.
Bumps version
Fixed the CCDrawNode tests.
Metal shaders were unconditionally binding the default texture’s sampler object.
Merge branch 'develop' of github.com:cocos2d/cocos2d-iphone into develop
Updating Chipmunk submodule.
Updates SSZipArchive
Recommended Xcode project settings update.
Updates ObjectAL
Updates version