Update addLight.js, 
Update addLight.js, 

$.extend kill all default values provided by the users, options variable is not needed as all the values/and the default ones are in opts
the extend function does all the job.
remove area light, It's is deprecated by three
replaces {pos: pos} by {pos}, babel should take care of that !

Former-commit-id: 75b3973009ece80dd53c11399b69c4f49c584aca
WhitestormJS/whs.js,WhitestormJS/whs.js