[#316] Prevent keyStatus from becoming negative.
[#316] Prevent keyStatus from becoming negative.

- Fixes a false-positive keypress when releasing a key after it has been rebinded.

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