Scripts/Naxxramas: Implement Kel'Thuzad's taunts after defeating each wing and the one after killing Mr. Bigglesworth
DB/Quest: Post-Partum Aggression

Closes #11502

By @Killyana, can you please update your db as in current tc db there is no  dmg_multiplier field in creature_template
DB/Creature: Ruul the Darkener

By @Killyana  closes #13690
DB/Creature: Archmage Pentarus Flying Machine

By @Killyana

There are some glitches for unkown reason but script does actually work but theres glitch with the teleport,

Closes #10796
Update 2014_12_14_02_world.sql
Update 2014_12_14_02_world.sql
Scripts/Archimonde: replaced one yell with proper db content and unhacked drain world tree

(cherry picked from commit 58aca0da81619c7f3932024c573024518369d8a7)
Scripts/HallsOfLightning: Implement Loken's intro speech and rewrite boss script to EventMaps/BossAI
Scripts/MountHyjal: Kill warning
Merge pull request #13698 from mthsena/3.3.5

Scripts/MountHyjal: Kill warning
DB/SAI: Ulduar Scripts

* Non repeating event between High Explorer Dellorah and Lore Keeper of Norgannon
* Repeating event between Kirin Tor Battle-Mage and Hired Engineer at first teleporter
Fix screwup I made when adding broadcast text

Fix an error I made when adding broadcast text had been too used to adding this as extra field as never used to be output by wpp even though is still 0 the field is output now for creature text.
Scripts/Naxxramas:

* Implement dialogue after Sapphiron dies.
* Spawn missing triggers at Kel'Thuzad's room.
* Implement a couple of missing texts and emotes to Kel'Thuzad's fight.
Scripts/HallsOfLightning: Readd a safe-measure line to remove Loken's aura
DB/Creature: Fix Lesser Nether Drake unit_flags

Closes #4455
Merge pull request https://github.com/TrinityCore/TrinityCore/pull/13650

RandomMovementGenerator - no need for extra complexity in computing height
解决跨阵营战场中分配到对方阵营中后无法拿取原阵营的旗子问题
Merge remote branch 'upstream/3.3.5' into dev