Add a few iron doors to Vlad's Tower

dat/tower.des

@@ -33,11 +33,11 @@ MONSTER:'V',$niches[5]
 # The doors
 DOOR:closed,(08,03)
 DOOR:closed,(10,03)
-DOOR:closed,(03,04)
-DOOR:locked,(10,05)
+DOOR:locked&irondoor,(03,04)
+DOOR:locked&irondoor,(10,05)
 DOOR:locked,(08,07)
 DOOR:locked,(10,07)
-DOOR:closed,(03,06)
+DOOR:locked&irondoor,(03,06)
 # treasures
 OBJECT:('(',"chest"),(07,05)
 
@@ -78,7 +78,7 @@ $place = { (03,01),(07,01),(11,01),(01,03),(13,03),
 SHUFFLE: $place
 LADDER:(11,05),up
 LADDER:(03,07),down
-DOOR:locked,(10,04)
+DOOR:locked&irondoor,(10,04)
 DOOR:locked,(09,07)
 MONSTER:'&',$place[0]
 MONSTER:'&',$place[1]
@@ -124,7 +124,7 @@ SHUFFLE: $place
 BRANCH:(02,05,02,05),(00,00,00,00)
 LADDER:(05,07),up
 # Entry door is, of course, locked
-DOOR:locked,(14,05)
+DOOR:locked&irondoor,(14,05)
 # Let's put a dragon behind the door, just for the fun...
 MONSTER:'D',(13,05)
 MONSTER:random,(12,04)

doc/xnh-changelog-0.4.0.txt

@@ -149,6 +149,7 @@ Revert 0.3.1 change that did extra fuzzing on monster group sizes. Monster group
 Corpses of F monsters will never have mold grow on them.
 Blessed wands will wrest 1/7 of the time, and uncursed 1/23 of the time, instead
   of 1/121 (cursed still wrests with this frequency).
+A few doors in Vlad's Tower are now iron.
 
 It contains the following non-gameplay interface changes: