My solution works somewhat differently than the old "maint.pl" script: The enable/disable functionality is no longer a separate webpage listing all hosts; instead, this function is moved to each hosts' "info" column page. I did this because I have about 2000 hosts, so the list of all hosts was practically unusable in my setup. You can see how it looks on the demo site http://www.hswn.dk/hobbit/ - just pick one of the "info" buttons.

The demo looks good. My concern is that we often disable all tests on up to 30 servers at a time to deploy code and reboot. Having to do each box individually would be a real chore.