Helix 0.9.2

Some cleanups from the rather dramatic 0.9.0 release. AED and listControl bugs have been fixed, AED class has been further extended. The redirect manager can now edit existing entries in the database. The SearchEngine class is now part of Helix, this is a big one and still experimental but completely operational.

Also, a note about the text editors within Helix. Some Helix releases on some templates trigger a bug in Firefox that causes the carrot to disappear. There is a workaround for this bug, but it's not very pretty. Firefox 3, which is due for release soon, has solved this bug so there will be no update in Helix to workaround it.