Quest 4901 "Guardians of the Altar"
Core/Spells: rename wrong spell attribute
*SPELL_ATTR0_BREAKABLE_BY_DAMAGE -> SPELL_ATTR0_HEARTBEAT_RESIST_CHECK
Core/Spells: Allow script only one effect with OnObjectTargetSelect or ObjectAreaTargetSelectHandler hooks when target, radius and conditions are the same.
Set Spirit Wolf attack speed at 1.5s (enhancement shaman spell Feral Spirit)

Update Spirit Wolf Attack Power when shaman Attack power change

Signed-off-by: dr.skull <dr.skull@centrum.sk>
Fixup for last commits.
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.