Standardize on American spellings.

Full internationalization would be much cooler, but that's never going
to happen.  Given that, this will at least prevent folks from constantly
having to look and switch between typing "armor" and "armour", depending
on which zone each item originated in, etc.

I could flip these either way, but a survey of the current state shows
that about 80% of the mixed cases use the American spellings, while 20%
use the British.  And, most words *only* exist in this data in their
American forms.  So, it seems the majority prefer these spellings.

In case anyone likes trivia:
* The most common mixed words in here were "armour" and "colour", each of
  which occured about half as often as "armor" and "color", respectively.
* The most British word in here was "theatre" (including other forms),
  which occured about twice as often as "theater".

This stanardizes all of these (and other forms of these same words):
* armour -> armor
* colour -> color
* favour -> favor
* honour -> honor
* civilise -> civilize
* centre -> center
* theatre -> theater
* defence -> defense
* offence -> offense
* realise -> realize

lib/world/zon/106.zon

@@ -23,7 +23,7 @@ M 0 10608 1 10645 	(Sujin Suncas)
 E 1 10609 99 15 	(a Suncas banded wristguard)
 E 1 10635 1 1 	(an authority ring of the Suncas clan)
 E 1 10609 99 14 	(a Suncas banded wristguard)
-M 0 10634 1 10632 	(Tring, the armourer)
+M 0 10634 1 10632 	(Tring, the armorer)
 G 1 10621 99 -1 	(a full faced Elcardorian helmet)
 G 1 10620 99 -1 	(a leather underlined Elcardorian shield)
 G 1 10618 99 -1 	(some Elcardorian military arm plates)
@@ -56,7 +56,7 @@ M 0 10639 1 10639 	(Lara)
 G 1 10631 100 -1 	(an ebony vial)
 G 1 10632 100 -1 	(a jar of blue waters)
 G 1 10633 100 -1 	(a jar containing bright yellow gel)
-G 1 10634 100 -1 	(a cherry coloured tube)
+G 1 10634 100 -1 	(a cherry colored tube)
 G 1 10639 100 -1 	(a null gravity potion)
 M 0 10637 1 10637 	(grandmother sunshine)
 M 0 10614 1 10637 	(grandfather sunshine)