Attention all TwixT players

[Douglas Zander <dzander@solaria.sol.net>]

The TwixT engine has been updated.  You may now use the "set" command
to change screen display size:
twixt set <userid> <password> <displaysize>
  where <displaysize> is one of: small debug medium large big
  Notes: large and big are the same size and mean the same thing
         the size and effects of "debug" are not fully understood,
         therefore use debug size with caution.
         once you set your display size it will remain in effect 
         for all boards until it is changed again