[RC3] enemies in walls not always attacking

[Dwindlehop]

Notable problems with this bug:

Kor's Fury sitting in walls six squares deep to the east of the dungeon.
The imp hanging out by a lake of fire fifty squares
Random earth elementals, including a rare, just sitting in Daikara walls.
Probably the same with the sandworm backup guardian, I just haven't Tracked him down yet.

[darkgod]

Should be fixed in RC4