[FIX] popups: Recompiled jqui.css from jqui.less to include popover width correction (although lots of other stuff seems to have changed as well, will discuss with chibaguy... ;)

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/13.x@51878 b456876b-0849-0410-b77d-98878d47e9d5