Corrected displayed error string when level not found
Corrected displayed error string when level not found

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