ENYO-894: switch to more advanced regular expression to find the URL part of a CSS url() expression Minor jshint-related code cleanups.
ENYO-894: switch to more advanced regular expression to find the URL part of a CSS url() expression
Minor jshint-related code cleanups.

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

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