Scripts/Ulduar: Kologarn's gate should be open while in combat

Source: personal experience and http://youtu.be/JcOiyNaKDlg?t=18s
Core/Items: Fix logic in Player::AddItem

Should send client the amount it gave you, not the amount it couldn't
give you
Core/Auras: Allow auras that cannot create a separate stack for each caster to stack on one slot
DB/Creature: The Ocular

Now Eyesore Blaster hits this npc for 12600 damage as it should.
Core/Vehicle: Make the passenger join event asynchronous

Prevents a crash in the following scenario:
Player 1 enters vehicle X
Seat on vehicle X is taken by Player 2
Player 2 is removed from vehicle X
Vehicle X dismisses (but player 1 did not even finish AddPasssenger
call)

Fixes #4271
Misc/Spells:
- Add some ulduar teleport pos for spells
- Add target hack for ulduar teleport spells
Core/Vehicles: Fix crash introduced in my previous change
Merge pull request #9214 from Aokromes/master

Scripts/Ulduar: Kologarn's gate should be open while in combat
DB/Creature: Add texts for Lurgglbr

Closes #1608
DB/SAI: Add script for Quergo's Gold

Closes #1677
DB/Loot:

+ Remove Zulian Mudskunk from Zulian Crocolisk loot template  Closes #9169
+ Add Vicious Oil to Vicous Oil Closes #9147
DB/Quests:

 Update Quest Requirements for To Bor'gorok Outpost, Quickly! Closes #9113
 Fix Quest Grouping
 Add Quest Conditions for Hellscream's Champion  Closes #9092
 Fix SAI for Hugh Glass Closes #9097
Core/Auras: Only auras that are stackable to use the same slot
Core/Vehicles: Fix another crash

Fixes #9225
Scripts/Blackwing Lair: Broodlord Lashlayer clean-up.
Scripts/BWL: Fix typo in recent commit.
Merge pull request #9228 from gigatotem/BWLv2

Scripts/Blackwing Lair: Broodlord Lashlayer clean-up.
Say NO to whitespace
Scripts/BWL: Fix build
Scripts/BWL: Fix build no. 2