Fixed a regression in the isometric renderer
Fixed a regression in the isometric renderer

following changes in the following commit :
https://github.com/melonjs/melonJS/commit/dd6af60165ee42fd58883250a671c5ceae5908d9

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