Settings audit log

Looking for a co-maintainer - contact beejeebus if you're interested!

Ever wanted to know what changed in the {variable} table? Who changed it? What the old value was?

Well, this is the module for you.

Using a database level trigger and a log of the connection id of the current request, we can log all of this. This should allow a bunch of other modules to be written on top of this one to allow for rollbacks etc.

Postgresql and Mysql supported, requires Mysql version greater than 5, and requires plpgsql installed on the Drupal database for Postgresql.