DB/Quest: Return of the High Chief

Script http://www.wowhead.com/quest=12069 rather than the tusk just been permamently spawned on the ground
DB/Quest: All Hail Roanauk!

Script http://www.wowhead.com/quest=12140

Closes https://github.com/TrinityCore/TrinityCore/issues/3051
DB/Spells: Cleaned playercreateinfo_spell_custom table and added WoTLK class spells only

Current playercreateinfo_spell_custom table has very weird spells in it. I emptied table, created new character for each class, logon each class, learned every spell from trainer and then added rest spells from quests (for example, hunters' Tame Beast). After that I did a PHP script to get character's spells from character_spell table and insert them into playercreateinfo_spell_custom table.

This has all trainer spells and quest spells (if any) for 3.3.5!

Fixes #13509
Closes #13516
DB/Quest: Rallying the Troops
Core/Commands: implement .pvpstats command

Shows number of battleground victories in the last 7 days

Closes #13460
Scripts/Commands: mod xp command

Closes #13476
Core/Player: Fix Cosmetic Auto-Repeat Bug

Closes #13532
Fixes #12436
DB/Quest: Sniffing Out the Perpetrator (Alliance)

By @gecko32

Closes https://github.com/TrinityCore/TrinityCore/issues/991
DB/Quest: Blending In

* Credit now given the proper way using areatriggers rather than using ooc los on npcs result, credit is now given wether or not player is wearing shroud rather than only working if player does not use shroud as the credit npc cannot see shrouded player
* Added the Detect Shrouded Player to En'kilah Abomination so these are now visible to shrouded players and will attack

Closes https://github.com/TrinityCore/TrinityCore/issues/10227
DB/Quest: Flight of the Wintergarde Defender

1) Add missing Helpless Wintergarde Villagers and associated updates for these
2) Script quest, based on original work by @Rushor
3) Fixed credit for rescueing villagers as this did not work in original script and added wintergarde mine to areas where gryphon is allowed to be flown as the tooltip for the mount states thats its allowed there

Closes https://github.com/TrinityCore/TrinityCore/issues/4175
Fix spell cooldown for guardian pets
Script/Spells: fixed crash in spell_hun_aspect_of_the_beast

Closes #13560
DB/SAI: fixed target_type of spell Vampire Rush, added in my previous commit.
I have used target_type, which caused that NPC used the spell on all players in range, that's wrong.
Core/Networking: Catch possible boost exception in StartNetwork

Closes #13557

(cherry picked from commit 3eb120ab507aa65e452d21a63ff500254129c262)
CMake/FindBoost: Fix policy CMP0054 warning (added in 3.1)

(cherry picked from commit 7e6dadfea68836cc92aaa7e1bb770be620225aa2)
DB/Misc: Misc Fixes

* Fix an error with spellfocus with previous conditions
* Battle for Hilsbrad so previous quest links to correct quest and not one which is disabled as depreciated quest,  ie quest 14351 replaced quest 550 but tc still had quest 550 set as next quest quest for 541 and was missing creature_queststarter entry for correct quest
* Crusader Bridenbrad phasing (should be visible for a tale of valor)
DB/Commands: Fix 2 commands permisions

Closes #13592
DB/Quest: Of keys and cages

Since have now confirmed that the issue with cages not closing is still present on clean tc,
DB/Misc: Quest linking

The amphitheatre of anguise should continue regardless as wether player completed http://www.wowhead.com/quest=12932 or http://www.wowhead.com/quest=12954 as first quest in chain, not only if player did 12932 (quest offered if player did not do nagrand quests), if 12954 was taken no further quest would be offered once returned.
Remove uneeded script

Removing core script for go_gjalerbron_cage and go_large_gjalerbron_cage