Registry: Do depth-first search instead of rendering order to an array.
Registry: Do depth-first search instead of rendering order to an array.

This allows the registration of new widget classes at any time.

arschmitz/uglymongrel-jquery-mobile,hinaloe/jqm-demo-ja,arschmitz/uglymongrel-jquery-mobile,hinaloe/jqm-demo-ja,arschmitz/uglymongrel-jquery-mobile,arschmitz/jquery-mobile,hinaloe/jqm-demo-ja,arschmitz/jquery-mobile,arschmitz/jquery-mobile