Usage       : .listen <type>
              .listen user <name>
Description : Allows you to control which message types you will listen to.
              (ie. which ones you will see) or listen to messages from a user.
              The default is for you to be listening to all message types.
              Use .examine to find out what you are ignoring/listening to.

<type> can be any of the following (and may be abbreviated):
	all     - Just like it says. All of the following message types.
	logon   - SIGN ON and SIGN OFF messages
	talk    - All the general chit-chat and normal .emote output
	shout   - Shouts and shout emotes
	tell    - The .tells sent to you by other users
	echo    - Output from .echo commands
	beep    - Messages with beeps designed to get your attention.
	system  - Various general system messages
	atmos   - Atmosphere messages
	bcast   - Broadcast messages (for Wizards and SUs only)
	wiztell - Wiztell messages (for Wizards and SUs only)
