permanent inventory window updates

Addresses the follwing missing updates:
- Quest Artifact identification by Quest Leader.
- Rust damage from a rust trap.
- Remove curse as a result of prayer (both fixing TROUBLE_CURSED_* and
  the blessed-remove-curse boon.)
- Charging via PYEC

src/quest.c

@@ -195,6 +195,7 @@ struct obj *obj;	/* quest artifact; possibly null if carrying Amulet */
 	    /* behave as if leader imparts sufficient info about the
 	       quest artifact */
 	    fully_identify_obj(obj);
+	    update_inventory();
 	}
 }