Collapsibles: makes sure only one collapsible in a set is expanded at the same time.
Collapsibles: makes sure only one collapsible in a set is expanded at the same time.

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