Refactor: AnimationPlaybackManager class added to encapsulate plaback logic.
Refactor: AnimationPlaybackManager wired to MainMenu.xib.
AnimationPlaybackManager additional setup in AppDelegate.
AppDelegate's playback logic is unused now.
Refactor: Simplified enabled state for AnimationPlaybackManager.
Removed obsolete code in AppDelegate.
Refactor: renamed SnapLayerKeys file to NotificationNames.
It held only one constant used as a notification name, looking good to hold more.
Added notificaiton name when an animation playback will start.
DeselectAll method added to AppDelegate.
Notification posted when playback animation is started and deslecting all nodes.
Refactor: added const keyword to actual constants.
Refactor: Shortened some methods since they have a better namespace now.
Adding a node to the stage will stop playback animation.
Pasting a node will stop the playback animation.
Scripts: Fixed scripts for paths with spaces
Updates colors of snapping guides and grid
Updates Cocos2D
Merge pull request #543 from jtwigg/develop

Develop
Merge pull request #538 from crmagicxxx/_scriptsPathWithSpacesFix

Scripts: Fixed scripts for paths with spaces
Merge pull request #515 from NickyWeber/feature/#451_stop_playback_on_actions

Feature/#451 stop playback on actions
Order snap node distance
Snap closest first
Removed redundant code
Merge pull request #554 from cocojoe/develop

Order snap node distance Issue #547
Merge branch 'develop' of https://github.com/apportable/SpriteBuilder into develop