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/wld/277.wld

@@ -166,9 +166,9 @@ To the west runs Bywater Road.
 S
 #27707
 The House of Arms~
-   Here is the finest weapons and armour shop in all of Shiredom, many fine
+   Here is the finest weapons and armor shop in all of Shiredom, many fine
 daggers and other blades displayed proudly along the walls and within various
-cabinets.  A few humble pieces of armour can be seen, most in fine shape
+cabinets.  A few humble pieces of armor can be seen, most in fine shape
 although they look rarely used.
 ~
 277 8 0 0 0 0
@@ -314,7 +314,7 @@ S
 A Smial~
    This humble smial is basically a hole in the ground which serves as the
 proper dwelling place for halflings.  Little round windows allow a view of the
-green Shirelands outside, the curving walls and gentle colours making this home
+green Shirelands outside, the curving walls and gentle colors making this home
 a very restful place to be in.
 ~
 277 8 0 0 0 0
@@ -326,7 +326,7 @@ The only exit lies to the east.
 S
 #27715
 A Smial~
-   This little round hobbit dwelling is warm and cozy, welcoming colours and
+   This little round hobbit dwelling is warm and cozy, welcoming colors and
 comfortably padded wooden furniture making it a most hospitable place.  Gentle
 heat wafts from a flickering fireplace, the smells of some savoury stew filling
 the room deliciously.
@@ -355,7 +355,7 @@ S
 #27717
 Shiriff Training Grounds~
    The sounds of mock battle and feigned death cries echo loudly around this
-place, clanging of weapons and scuffling as young halflings train in defence.
+place, clanging of weapons and scuffling as young halflings train in defense.
 The ground is grassless and muddy where grappling hobbits have worn away the
 grass, the air saturated with the smell of sweat.
 ~
@@ -435,7 +435,7 @@ To the west runs Bywater Road.
 S
 #27721
 The Grocer's Delight~
-   Tempting scents of newly baked goods fill the air, brightly coloured fruits
+   Tempting scents of newly baked goods fill the air, brightly colored fruits
 and vegetables glistening in neatly lined baskets.  Various dried meats hang on
 metal hooks against the wall, salted pork and beef jerky amongst them.  A small
 section is set aside for the locally made treats; apple tarts and hard toffees
@@ -567,7 +567,7 @@ S
 #27728
 A Grassy Field~
    This large field is festively decorated, great tables of food spread out and
-colourful banners strewn about the trees.  It seems to be a birthday party
+colorful banners strewn about the trees.  It seems to be a birthday party
 judging by the joyful chants and songs that spontaneously erupt, filling the air
 with the sound of laughter and merriment.
 ~
@@ -596,7 +596,7 @@ S
 #27729
 Southern End of a Grassy Field~
    Little flowers and grasses flourish peacefully here, the sounds of music and
-clapping coming from the north.  Little pieces of coloured party confetti floats
+clapping coming from the north.  Little pieces of colored party confetti floats
 in the breeze along with the seedlings, smells of fresh cooking and baking
 saturating the air.
 ~
@@ -624,7 +624,7 @@ S
 #27731
 Brandywine Bridge~
    The clear water of the Brandywine River flows beneath this solidly built
-bridge, bright coloured fish swiming with the current.  The cool water looks
+bridge, bright colored fish swiming with the current.  The cool water looks
 invitingly refreshing, pale smooth pebbles lining the ground beneath and tall
 reeds bending in the breeze, caressing the water as it rushes past.  Delving
 Lane extends to the north, while Bywater Road can be seen to the south.
@@ -698,7 +698,7 @@ S
 #27734
 Delving Lane~
    Stretching to the north and the south, Delving Lane is well-tended, beautiful
-flowers of various colours blooming on either side, and large trees lining the
+flowers of various colors blooming on either side, and large trees lining the
 path, shading it with long graceful branches.  Little sunflower seeds lie
 scattered around, as if some traveller stopped for a brief snack.
 ~
@@ -819,7 +819,7 @@ A small path winds its way eastward.
 S
 #27740
 A Stony Path~
-   Little coloured pebbles have been embedded in this bumpy little path that
+   Little colored pebbles have been embedded in this bumpy little path that
 winds through the grass.  A small residence can be seen at the northern end of
 the trail.  The rest of the land seemingly left to the farm animals, the noisy
 din of pigs grunting and scuffling coming from the east.
@@ -1136,7 +1136,7 @@ S
 The Tailor's~
    Yards of various types of fabric are spread carefully out for display,
 examples of handsewn gowns and garments hanging from the ceiling or modelled by
-wooden stick figures.  Baskets of different coloured threads and ribbons sit on
+wooden stick figures.  Baskets of different colored threads and ribbons sit on
 a table in the center of the room, allowing the buyer to choose exactly what
 they want.
 ~