adding documentation for passing additional arguments to can?
adding documentation for passing additional arguments to can?

coorasse/cancancan,sideci-sample/sideci-sample-cancan,mv288/cancan,antonifs/cancan,neomadara/cancancan,ReaxDev/cancancan,NelsonScott/cancancan,roaaangel/cancancan,mattbrictson/cancan,dgynn/cancancan,VoroninNick/cancan,mccraigmccraig/cancan,gdpelican/cancancan,macmartine/cancancan-ruby,GeorgeZhukov/cancancan,CanCanCommunity/cancancan,uversity/cancan,0612800232/cancan,hunterae/cancan,chadzilla2080/cancan,docount/cancan,MetricMike/cancancan,StartupWeekend/cancan,adamliesko/cancancan,jackquack/cancan,jhawthorn/cancancan,chadzilla2080/cancancan,ryanb/cancan,Ahnita/cancancan,nerde/cancancan,phallguy/cancancan,xbits/cancan,tiarly/cancancan,chenxin0723/cancancan,greenriver/cancan,dima4p/cancancan,travis-repos/cancan,moss-zc/cancan