Added button property and methods for leftButtonReleased, rightButtonReleased and so on.
Added button property and methods for leftButtonReleased, rightButtonReleased and so on.

BeanSeed/phaser,spayton/phaser,mahill/phaser,photonstorm/phaser,TukekeSoft/phaser,mahill/phaser,BeanSeed/phaser,TukekeSoft/phaser,photonstorm/phaser,spayton/phaser,TukekeSoft/phaser