added support property for cssPseudoElement. Test will allow plugins to  use CSS generated content while providing a fallback for cases where it's unsupported.
added support property for cssPseudoElement. Test will allow plugins to  use CSS generated content while providing a fallback for cases where it's unsupported.

First use case is the auto-numbering of OL elements in the listview plugin.

startxfr/jquery-mobile,npmcomponent/cbou-jquery-mobile,rwaldron/jquery-mobile,arschmitz/uglymongrel-jquery-mobile,rwaldron/jquery-mobile,arschmitz/uglymongrel-jquery-mobile,npmcomponent/cbou-jquery-mobile,hinaloe/jqm-demo-ja,arschmitz/uglymongrel-jquery-mobile,arschmitz/jquery-mobile,startxfr/jquery-mobile,startxfr/jquery-mobile,npmcomponent/cbou-jquery-mobile,arschmitz/jquery-mobile,hinaloe/jqm-demo-ja,arschmitz/jquery-mobile,hinaloe/jqm-demo-ja