Core/Achievements: achievement earned message will now use broadcasttext instead of trinity_string
DB/Locales: Official localizations for `quest_template` of French, German, Spanish, Spanish (MX) and Russian locales

* Note: ObjectiveText's, OfferRewardText's and RequestItemsText's are missing
DB/Creature: Lorrin Foxfire

Closes #11918
DB/Misc: Fixed some BroadcastText errors
Correct display of output for .rbac account list command. (thanks Spp-)
Merge pull request #11935 from velinath/master

Core/Commands: Corrected display of output for .rbac account list command. (thanks Spp-)
Core/AuctionHouse: Fix AuctionHouse exploit

Fix an exploit in Auction House using either CheatEngine or WPE that allowed to sell more items than the Player had in inventory or to crash worldserver.
Fixes #11831
Fixes #11928
Core/Player: Check Player race and class on login

Don't allow login for Players with bad race/class combination to avoid any further crash later.
DB/Locales: Official localizations of `item_template` for koKR, zhCN, zhTW and Spanish (MX) locales
Core/Movement: Fixed an exploit allowing players to crash the server by using modified movement packets
DB/Locales: Official localizations of `broadcast_text` of kokR, zhCN, zhTW and Spanish (MX) locales
DB/Locales: Official localizations for `gameobject_template` of koKR, zhCN, zhTW and Spanish (MX) locales
Core/LFG: Fix LFG GS requirement not updated until relog

Fix Player receiving "You do not meet the requirements for the chosen dungeons" for too low Gear Score level even after equipping items with high enough Gear Score.
DB/Gossip: Add missing gossip to Sar'this
DB/Gossip: Add missing gossip to Argent Squire
Core/LFG: Fix crash

Fix crash added in ab1d0512ea7818d64a63a514195dbd9644d284fb by adding an additional NULL check.
Fixes #11941
Merge branch 'master' of https://github.com/TrinityCore/TrinityCore