Add thread name for debugging

Add thread name for the WinterBot "Go" thread.
Remove insult commands

Remove insult commands, as it was a bad idea from the start.
Output changes

Add message for stream online/offline, remove messages when saving
files.
Actually delete file

Actually delete insult.cs.
Create directories for writing files

Directories which don't exist cause an exception when trying to write
files.  This creates the proper directory structure before saving files.
Add purge and spam commands

Add command to purge all chat with a particular message.
Add command to automatically time out (or ban) a spammed message from
chat.