MOBI-994
menuItem in menuButtons disappears in IE9 after submit
- render a data-lastselected attribute to force the DOM update to include the entire menuButton
- also fix invalid snId, pcId, and singleSubmit attributes

git-svn-id: http://anonsvn.icesoft.org/repo/icemobile/trunk/icemobile@39760 8668f098-c06c-11db-ba21-f49e70c34f74