plural archetype names.

[Mark Wedel <master@rahul.net>]

 One thought I have is adding another field to archetypes called
plural_name.  This would be the name to use for more than one archetypes.

 Why do this?  It would get rid if the need_ie field, as well as need_an
field (singular object coudl be called an amulet, and plural would be
amulets.)  It would also eliminate some special cases, and make plurals
actually work properly.

 Cases where is does not work correctly now is potions.  a 'potion of
intelligence' is fine, but 'two potion of intelligences' is not correct.

 If the archetype lacks a plural name field, then it is assumed taht the
plural is created by just adding 1 s to the name.

 This is really a cosmetic change.  It shouldn't slow the game down
any, and only take a little more memory (for the plural name
elements.)

 Another thing that would be nice to add is to let players name their
objects.  This would be especially handy for rings and amulets, to name
it ring of cha+1 or something.  Although, in the defines, you could also turn
on FULL_RING_DESCRIPTION.

 --Mark