[#179] potential fix for multi-touch using PointerEvent
[#179] potential fix for multi-touch using PointerEvent

gopalindians/melonJS,rlugojr/melonJS,melonjs/melonJS,srbala/melonJS,gopalindians/melonJS,Smoss/Enoru-eco,Smoss/Enoru-eco,TukekeSoft/melonJS,MarkoIvanetic/melonJS,gopalindians/melonJS,rlugojr/melonJS,melonjs/melonJS,TukekeSoft/melonJS,rlugojr/melonJS,srbala/melonJS,srbala/melonJS,TukekeSoft/melonJS,MarkoIvanetic/melonJS