Adding cooldown for Default

Kills the channel's mood. Plus we have like 40 other themes you can start, no reason to have default be able to be started multiple times anymore. Maybe if it was actually balanced that would be another story.
Merge pull request #333 from WriggleNightbug/master

Added a message when using /editq
Merge pull request #329 from Fuzzysqurl/patch-2

Adding cooldown for Default
Reg limit
Merge branch 'master' of github.com:po-devs/po-server-goodies
Added a /triviarules command