API changelog

Date	Change
24 May 2014	Notifications gained sound property, and close method.
17 May 2014	Menus methods improved and extended
15 May 2014	macgap.sound methods now optionally take a callback which is called when the sound is finished playing. As well as macgap.sound.playSystem("Funk"); we can now supply a callback as follows macgap.sound.playSystem("Funk", function(){console.log('Sound complete')});