fixed issue with zero value in the setDimensions function
fixed issue with zero value in the setDimensions function

pbakaus/scroller,vigetlabs/scroller,voy/zynga-scroller-es6,mcanthony/scroller,modulexcite/scroller-1,juliangarnier/scroller,Prinzhorn/scroll-logic,modulexcite/scroller-1,popham/scroller,reapp/scroller,u9520107/scroller,MartinMoizard/scroller,pedroha/scroller,MartinMoizard/scroller,stonegithubs/scroller,zynga/scroller,CarLingo/scroller,RasmusTG/scroller,mjohnston/scroller,InstigateMobileCJSC/scroller,pbakaus/scroller,RasmusTG/scroller,pedroha/scroller,Prinzhorn/scroll-logic,zynga/scroller,CarLingo/scroller,stonegithubs/scroller,InstigateMobileCJSC/scroller