Usage: SHIT <channel> <nick|userhost> <level> [expire] <reason>
   Shitlists someone on all channels (*) or a certain channel
   Level - can be 1 through 3
      1 - doesn't let the person be opped or voiced
      2 - will kb the person
      3 - rebans the person when unbanned by anyone
   Expire - the number of days the shitlist will be good for (default is 30)
   Reason - reason for the shitlist...displays it on kickban
   Note: The bot checks for shitlisted users on join, nick switch, and
         when the bot is opped
   See also: RSHIT, QSHIT, SHITLIST
