[popup] Simplify manager to only handle one popup
[popup] Simplify manager to only handle one popup

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