Added small check to prevent error when importing in previous update
[0454] Allowed a few creatures in Temple of Ahn'Qiraj and Ruins of Ahn'Qiraj to drop obsidian chunks

* Made creatures 15355 (Anubisath Guardian), 15338 (Obsidian Destroyer),
15264 (Anubisath Sentinel) spawn small obsidian chunk on death
* Made creatures 15340 (Moam), 15338 (Obsidian Destroyer), 15277
(Anubisath Defender) spawn large obsidian chunk on death
Sources:
http://wowhead.com/object=181069#comments
http://wowhead.com/object=181068#comments
[0455] Removed spawns of creatures 15962 and 15630 in Temple of Ahn'Qiraj

* Removed all spawns of creatures 15962 (Vekniss Hatchling) and 15630
(Spawn of Fankriss) because they are spawned during the encounter with
Fankriss
This closes #163
[0456] Updated respawn time of creatures 15229 and 15300 in Temple of Ahn'Qiraj

* Fixed spawn time of creature 15229 (Vekniss Soldier) and 15300
(Vekniss Drone) In Temple of Ahn'Qiraj as they should respawn in 20 secs
and not in minutes or hours
Source: http://www.wowwiki.com/Vekniss_Soldier_Packs
[0457] Updated loot tables of bosses in Scholomance

* Updated loot table of bosses in Scholomance. Added missing items,
updated drop rate, added reference tables.
Thanks scotty0100 for pointing. This closes #226
* Lord Alexei Barov (10504): added missing entries, increased chance to
drop rare item (blue item) to 100%
Source: http://www.wowwiki.com/Lord_Alexei_Barov#Patch_changes
* Lady Illucia Barov (10502): added missing entries (some generic and
some specific like dark rune)
Source: http://www.wowwiki.com/Lady_Illucia_Barov#Loot
* Jandice Barov (10503) : added missing entries, especially item 14543
(Darkshade Gloves)
Source: http://www.wowwiki.com/Jandice_Barov#Loot
* Ras Frostwhisper (10508): updated reference table as some element in
it shouldn't be in (like Alanna's Embrace) added missing entries (mostly
generic entries)
http://www.wowwiki.com/Ras_Frostwhisper#Loot
* Rattlegore (11622) : added missing item and reference table, updated
drop chance of scourge stone to 100%
* Doctor Theolen Krastinov (11261) : added missing items and reference
table
* Darkmaster Gandling (1853) : added/moved missing items and reference
table and especially items 13937 (Headmaster's Charge) and 21525 (Winter
Veil hat)
* Blood Stewart of Kirtonos (14861) : added missing items, reference
table and increased drop chance of scourge stone to 100%
* Kirtonos the Herald (10506) : added missing items
* The Ravenian (10507) : added missing items and reference table
* Instructor Malicia (10505) : added missing items and reference table
* Lorekeeper Polkelt (10901) : added missing items and reference table
and increased drop chance of scourge stone to 100%
[0458] Linked creatures 10432, 10433, 10475 in Scholomance

* Linked creature 10432 (Vectus), 10433 (Marduk Blackpool) and 10475
(Scholomance Student) in Scholomance. Now, students will attack when
Marduk is engaged and everyone will attack when Vectus is engaged.
Source: http://www.wowwiki.com/The_Viewing_Room
This closes #188