Added validation for when no marker is provided to updateMarker method
Added validation for when no marker is provided to updateMarker method

BeanSeed/phaser,pixelpicosean/phaser,spayton/phaser,mahill/phaser,photonstorm/phaser,photonstorm/phaser,TukekeSoft/phaser,englercj/phaser,TukekeSoft/phaser,TukekeSoft/phaser,BeanSeed/phaser,spayton/phaser,rblopes/phaser,mahill/phaser