Several things that break savefile compatibility

- Version change from 3.4.x
- timed_delay feature ignore in makedefs
- several flags from iflags to flags
- use offsets from mons array entries in save file rather than storing
  the ptr and calculating the distance from beginning of array

src/pickup.c

@@ -2259,7 +2259,7 @@ boolean outokay, inokay;
     menu_item *pick_list;
     char buf[BUFSZ];
     int n;
-    const char *menuselector = iflags.lootabc ? "abc" : "oib";
+    const char *menuselector = flags.lootabc ? "abc" : "oib";
 
     any.a_void = 0;
     win = create_nhwindow(NHW_MENU);