[ENH] modal: General improvements for $.fn.modal (actually a busy spinner, doesn't need to be modal).
Better z-index handling and positioning using more CSS and (a little) less JS

git-svn-id: file:///var/local/code.tiki.org/tikisvn/trunk@47264 b456876b-0849-0410-b77d-98878d47e9d5
[FIX] connect: A few more missing prefs from the private list

git-svn-id: file:///var/local/code.tiki.org/tikisvn/trunk@47265 b456876b-0849-0410-b77d-98878d47e9d5