[popup unit tests] Add test that makes sure the payload has no residual classes after popup destruction
[popup unit tests] Add test that makes sure the payload has no residual classes after popup destruction

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