[0659] Fixed dual spawn of NPC 11488 in Dire Maul

* Fixed NPC 11488 (Illyanna Ravenoak) who is spawned twice. This closes #513
Source: http://www.wowhead.com/npc=14308
https://web.archive.org/web/20060708184924/http://wow.allakhazam.com/db/mob.html?wmob=11488 (comments)

Signed-off-by: Cala Haryon <calaftp@free.fr>
[0660] Unsheath equipment of creatures 14363, 14365 & 14367 in Ironforge

* Made weapon unsheath for creature 14363 (Thief Catcher Shadowdelve),
14365 (Thief Catcher Farmountain) and creature 14367 (Thief Catcher
Thunderbrew) in Ironforge.
Thanks Zingzah for pointing. This closes #509