Remove broken .gif files; update worldmap image.

git-svn-id: svn://svn.code.sf.net/p/crossfire/code/maps/trunk@6128 282e977c-c81d-0410-88c4-b93c2d0d6712

Info/README

@@ -9,17 +9,9 @@ Use the comment field that the maps have - put in who the author is,
 what level the map is, and any other special notes.
 
 ------------------------------------------------------------------------------
-GIF files:
+Image files:
 
-el_map.gif is an elevation map - it is color coded based on elevations.
-
-terrain_map.gif is color coded based on the type of terrain - I tried to match
-the coloration on what the image looks like in the png set.
-
-ann_map.gif is a annotated version of the map, showing the roads and
-locations of the main cities.
-
-world.gif: This is a map of how the world looks.  This was done by
+worldmap.png: This is a map of how the world looks.  This was done by
 converting all of the world maps into images, scaling those down, and
 then merging them into one large image. If you look carefully, you can
 make out the towns, roads, etc.