update cocos2d version.
update cocos2d.
Restore Sound keyframe tabs.
Stop leak of images.
Revert "Restore Sound keyframe tabs."

This reverts commit 6ba31247c7bfe19f758e8a3d79ac7ceac4a01663.
add select pngs back to project.
Merge branch 'develop' of https://github.com/apportable/SpriteBuilder into develop

Conflicts:
	SpriteBuilder/SpriteBuilder.xcodeproj/project.pbxproj
update inspector upon adding a keyframe from translations.
only allow transformations when not editing physics.
move cocos2d forward.
Merge pull request #167 from jtwigg/develop

Develop