ENYO-884: don't use cacheBust for file URLs
ENYO-884: don't use cacheBust for file URLs

Enyo-DCO-1.0-Signed-Off-By: Ben Combee (ben.combee@palm.com)

kustomzone/enyo,beni55/enyo,PKRoma/enyo,enyojs/enyo,soapdog/enyo,beni55/enyo,bright-sparks/enyo,enyojs/enyo,mcanthony/enyo,bright-sparks/enyo,soapdog/enyo,PKRoma/enyo,onecrayon/enyo,zefsolutions/enyo,mcanthony/enyo,onecrayon/enyo,wikieswan/enyo,zefsolutions/enyo,airspringsoftware/enyo,wikieswan/enyo,kustomzone/enyo,airspringsoftware/enyo