[SEC] featured links: parameterize query used to update links
[FIX] featured links: faulty logic and missing hidden input from the form was causing the update function to never be called - a new link was being added instead, causing the hits history to be lost

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/12.x@50208 b456876b-0849-0410-b77d-98878d47e9d5