initial broken cell locking.
Merge branch 'develop' of https://github.com/jtwigg/SpriteBuilder into locked_cell

Conflicts:
	SpriteBuilder/SpriteBuilder.xcodeproj/project.pbxproj
	SpriteBuilder/ccBuilder/en.lproj/MainMenu.xib
Fix memory leaks and optimize memory usage.
Fix readonly InspectorFloatCheck’s
working locked joints and SequencerJoint.
don’t render SequencerJoints on stage.
locking down joints when appropriate.
update cocos2d version.
SK default project update
sb+sk update
Cocos2D version used to compile SB is dumped in the Generated folder as cocos2d_version.txt.
Cocos2dUpdater class added. WIP.
Update task is run upon opening a project.
update sb+sk submdole
Merge branch 'develop' of github.com:apportable/SpriteBuilder into develop-steffen
Unzipping of cocos2d folder in temp: returning NSError if template project zip file does not exist.
adding kinetics to SB
Merge branch 'develop' of https://github.com/apportable/SpriteBuilder into kinetics

Conflicts:
	SpriteBuilder/libs/cocos2d-iphone
Recursion removed to find .gitmodules file in project folder.
Added more error codes for unzip operation.
NSError object returned by reference in readProjectsCocos2dVersionFile.
Refactored temp folder tidying up and path generation.