02_19_2014 - Separated shop functionality into it's own file.
02_19_2014 - Normalized drawShip function with other drawing functions. Cleaned up unnecessary global strings.
02_19_2014 - Created drawBullet to match other drawing functions.
02_19_2014 - Moved sprite pictures into their own file.
02_19_2014 - Updated read me with new file structure.