DB/Quest: Sarkoth

By dr-j, closes #12511
DB/Quest: Fix Banishing Portal

By dr-j, closes #12510
DB/Misc: Fix Gossip on Kor'kron overseer

By dr-j, closes #12514
DB/Misc: Adition to 9f0ec86

By dr-j
Buildsystem/GCC: Fixed release linking errors