All-wrong-and-ugly solution to using exact match variables which are

All-wrong-and-ugly solution to using exact match variables which are
persistent: it's not supported any more. However, until we have real
separation of variables comming from user, via format and/or from links
(right now, they are all using f/v) this problem can't be fixed right.
Much nicer error mesages ("Software error") instead of "Internal Server Error".

git-svn-id: file:///home/dpavlin/private/svn/webpac/trunk@639 13eb9ef6-21d5-0310-b721-a9d68796d827