[FIX] userprefs: Don't do {sortlinks} on country select options (broken by reformatting by me in r45194, sorry) - also, use natcasesort in get_flags (one of them starts with a lower case letter)

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/11.x@47369 b456876b-0849-0410-b77d-98878d47e9d5