Made optinal param optional.
Made optinal param optional.

Diaosir/limejs,wikieswan/limejs,saulpw/nucleotron,sjamog/Lime-Projects,digitalfruit/limejs,digitalfruit/limejs,GeorgeMe/limejs,Diaosir/limejs,srbala/limejs,ZzCalvinzZ/ludumdare26,Inframatic/theBasics,srbala/limejs,Inframatic/theBasics,squallyan/limejs,Diaosir/limejs,GeorgeMe/limejs,squallyan/limejs,saulpw/nucleotron,oleg-kipling/limejs,wikieswan/limejs,digitalfruit/limejs,sjamog/Lime-Projects,srbala/limejs,squallyan/limejs,ZzCalvinzZ/ludumdare26,GeorgeMe/limejs,wikieswan/limejs,sjamog/Lime-Projects,oleg-kipling/limejs,runawaygo/Saver2012,oleg-kipling/limejs,runawaygo/Saver2012