Numerous changes to terrain and trim. The changes to the scneario editor work as expected.

- New way of drawing walkway (doesn't work yet)
- New way of drawing roads (doesn't yet work correctly)
- New way of drawing trim (not tested yet)
- New way of handling marked specials (works in editor but not in game)
- New way of handling two-space rubble in the editor (works as expected)
- Merged several terrain special properties
- Deprecated several terrain graphics
- Completed (probably) the import & convert code for old-format terrain
- Probably other things that I have forgotten that have something to do with terrain
- A few other little things, bugfixes, etc

git-svn-id: http://openexile.googlecode.com/svn/trunk@56 4ebdad44-0ea0-11de-aab3-ff745001d230

osx/classes/outdoors.cpp

@@ -9,12 +9,18 @@
 #include "classes.h"
 #include "oldstructs.h"
 
+extern cScenario scenario;
+
 __attribute__((deprecated))
 cOutdoors& cOutdoors::operator = (legacy::outdoor_record_type& old){
 	int i,j;
 	for(i = 0; i < 48; i++)
-		for(j = 0; j < 48; j++)
+		for(j = 0; j < 48; j++){
 			terrain[i][j] = old.terrain[i][j];
+			if(scenario.ter_types[terrain[i][j]].i == 3000) // marker to indicate it used to be a special spot
+				special_spot[i][j] = true;
+			else special_spot[i][j] = false;
+		}
 	for(i = 0; i < 18; i++){
 		special_locs[i].x = old.special_locs[i].x;
 		special_locs[i].y = old.special_locs[i].y;