1.4.0

• Added hiresWidth and hiresHeight attributes to System class
• Added background color/image support for desktop
• Added background position support
• Added onRepeat callback to Tween class
• Added coreModules property to Core class
• Added iPod detection
• Renamed resize attribute to scale on System class
• Improved background color/image syntax
• Improved core syntax
• Disabled analytics on CocoonJS
• Fixed chained tween start parameter
• Fixed keyboard, tween and sprite modules to strict mode
• Fixed loader to work without audio module
• Fixed tween removing
• Fixed music volume on resume