Dump debug log

[Merovius]

It would be cool, if frank had a command to dump a debug log of the last 10 minutes or so (or a timeframe that could be specified), so that bugs can be inspected. There's not always someone with enough access and knowledge in the channel, so if a bug occurs, the logs sometimes just scroll away and it's difficult to find them. If anyone could trigger a log-dump for later, that would probably be easier.

If this is done, pay attention to not allow DoS-Attacks; only keep a limited number of dumps and also limit the time frame the dumps will contain. And the log-dump shouldn't be world-readable, I guess.