Minor cleanup and warnings.
Merge pull request #740 from osinoleg/develop

Fixes to CCEffects
Some CCEffect template fixes.
Making some of the newer CCNode ivars private. There have been bugs due to people assigning _physicsBody directly.
Reimplemented CC_NODE_RENDER_SUBPIXEL in the default vertex shader.
Premultiply vertex colors for CCDrawNode.
Update progress node tests.
Merge branch 'v3.0' into develop
Bizzaro fix for CCProgressNode.
Merge branch 'develop' of github:cocos2d/cocos2d-iphone into develop

Conflicts:
	cocos2d/CCSprite.m
Merge remote-tracking branch 'upstream/develop' into develop

Conflicts:
	cocos2d/CCEffect.m