Added the possibility to limit the entity velocity to a specified value (through the setMaxVelocity function).
Added the possibility to limit the entity velocity to a specified value (through the setMaxVelocity function).

It's however only possible for now to define a cap value for the y
velocity, for the x velocity some code refractor is needed first !

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