nexuiz-data will never complete

So, it appears that nexuiz-data needs more than 24 h to complete it's current backlog.

Since we kill imports that exceed their 24 h quota... this will never happen.

We can either:
- raise the current limit to some higher value (unknown)
- add a config option specific to each package so we can keep a sane default for most of them but raise the bar for cases like this.