Full Screen Demo and general prep

* JoiStyk demo goes full viewport!!
* cleaned up variable order
* made function names instead of var functions
* general prepping to separate JoyStyk into its own namespace
* need to create utility functions out of the general use functions
	* canvas high DPI scaling
	* minimalist touch detection
	* getting position of pointer/touch
	* requestAnimationFrame too
* drawings could be their own thang as well