Command repeating by using cmd queues

This replaces the old pushq/saveq arrays (which were used to save
the keys pressed by the user for repeating a previous command)
with a new command queue.  This means there's no hard-coded limit
to the saved keys, and it can repeat extended commands which are
not bound to any key.

src/quest.c

@@ -164,7 +164,7 @@ is_pure(boolean talk)
         } else if (u.ualign.record < MIN_QUEST_ALIGN) {
             You("are currently %d and require %d.", u.ualign.record,
                 MIN_QUEST_ALIGN);
-            if (yn_function("adjust?", (char *) 0, 'y') == 'y')
+            if (yn_function("adjust?", (char *) 0, 'y', TRUE) == 'y')
                 u.ualign.record = MIN_QUEST_ALIGN;
         }
     }