Lots of little fixes!

Adjusted reply speed.. I actually thought the code was slow because of how long they took to reply sometimes! 

Also fixed #79 for good; very happy about that.

I made a temporary fix for !replyrate.. something seems to be broken with core/barf.py and it's mucking up plugins.

Started work on an e-mail plugin that got roped into my original pull, but the code is unstable so I removed it for a safer pull.