uwiki maintenance script

[ct]

create a script which does (daily) maintenance on the uwiki database. This includes:

• remove 'pending' accounts if they are stale for longer than a configured timespan (few days)
• vacuum the database
• (later) clean out spam edits (non approved edits)
• .. some other things to hook there in

could be implemented as uwiki action, then triggered by crontab with a GET/wget/fetch whatever command!