Added crowdcontrol plugin which allows for kick/ban/warnings...

...based on regex definitions of unwanted chat messages. Lets the bot owner set a time limit for the ban and the plugin will unban after the set time. If it is set to not kick the user, a simple message will be displayed to the user who sent the message. Requires bot to have admin or operator privileges.

Could be used to stop people from pasting base64 encoded images (as seen in the example), or inappropriate terms.