make default background of tiles -1 for multitiles, as it is already for normal tiles.
Updated TALK_MISSION_INQUIRE for the small relic quest.
escape from the iexamine function after a z-level movement
clear trap locations on z-level movement
Change allocated_invlets to be a set. Simplify logic for showing hotkey count. Don't bother searching for a free invlet when we know we're out.
0 Strength melee crash bug fix
Merge bugfixes.