very basic info on an IRC channel; specifically, that returned by a LIST command

	printing
	printOn:

	private-initialization
	initializeName:numUsers:topic:

	access	top
	name the name of the channel
	numUsers number of users currently on the channel
	topic the current topic of discussion

	printing	top
	printOn: Append to the argument, aStream, a sequence of characters that identifies the receiver.

	private-initialization	top
	initializeName:numUsers:topic:

	instance creation	top
	name:numUsers:topic: