Core/Quests: quests which have been added with no questgiver (like spells) will now also show a icon in the quest log

By Northstrider and Malcrom
DB/Misc: Hellfire Peninsula Pathing

By @Kittnz
Core/Corpses: Fixed loading corpse guid during server startup
Fix #13351
Merge pull request #13454 from ShinDarth/434_fix

Code/Quests: Fix QUEST_FLAGS_PLAYER_CAST quests
DB/Misc: Zone Wide Texts
Scripts/Ulduar: Fix Kologarn's arms being despawned before they're used to access the rubble spawning triggers

(cherry picked from commit 4c93ac74da81eeb5af27320777b64d347050f8e2)
Scripts/Ulduar: Fix Ignis' golems not shattering in 25m

Closes #10519

(cherry picked from commit 60493b3057034833dc24674d688eae9bf3d77505)
Scripts/Ulduar: Fix Ignis' Slag Pot periodic ticks and enable achievement "Hot Pocket"

(cherry picked from commit 21820b425b0b573229f683a2d45b23d8a42c888d)
DB/Disables: Remove criteria for the "Shattered" achievement from disables

...as it works fine. Ulduar/Ignis achievement.

(cherry picked from commit 799bdc17105c566a705cb93b4f1d1813c23f2ba2)
SQL: Update /dev/world_database.sql
DB/Achievement: Remove unneeded criteria data for "A Tribute to Immortality"

Required team is already checked from dbc on criteria update
Closes #4622
Thanks to @joschiwald

(cherry picked from commit 1823e2f9b822b163a7f79719e6c8d1504707292e)
Core/Entities: Fixed data sent in movement packets - time3 in transport block is actually the id of a vehicle we are passenger on
Scripts/ToC: Twin Val'kyr

- Script rewritten to EventMaps
- Implemented random special ability sequence
- Adjusted timer for special abilities to 45 seconds
- Misc clean up.
Closes #7546

(cherry picked from commit e5da0dccfac75fc1ccb111b9977f31ff35745922)
Scripts/ToC: Few codestyle changes and clean ups

(cherry picked from commit f6896c9a3a460047b47190d2964d73029bf33eb1)
Scripts/ToC: Remove a safe-measure call that caused issues

Closes #11874

(cherry picked from commit 3f094b9116d934ffeee917b0abf9ccd622381f68)
DB/Disables: Remove achievement "Drive Me Crazy" from disables

Refers to Yogg-Saron

(cherry picked from commit 76419aadcddddb5d47f54f7d144e6cd9951b6408)
Core/Spells: Prevent Divine Intervention from removing death persistent auras

Such as Dungeon Deserter, Resurrection Sickness, etc

(cherry picked from commit fbcd180716f38eb933c28f33fc7641a0c7696cef)
Scripts/Instance: The Stonecore
Merge pull request #13368 from Mihapro/4.3.4-TheStonecore

Scripts/Instance: The Stonecore