Usage: .set colour <type> <colour>

Allows you to set the colours used when your terminal is
set to 'colour'.  Valid types are:
   talk           Normal conversation in the current group
   tell           Conversation to a specific user or group
   list           Conversation carried out on a list.
   listname       The name of lists inside { }
   shout          Shouted text, seen in all groups
   message        Messages from the talker, help etc.
   nick           The colour a user's name gets highlighted
	                if they mention you.

These can be postfixed with "back" for the background colour.

Valid colours are:
   black, red, green, yellow, blue, magenta, cyan, white.
Colours can be prefixed with "br" to make a brighter version.
