Scripts/HoR: Some fixups.
Grizzly Hills/Scripting: Fix Quest 12244 "Shredder Repair" and 12270 "Shred the Alliance"
Closes #1942 #3754
Core/Vehicle: Add an extra check for required energy before setting power.
Scripting/Grizzly Hills: Add missing include "SpellScript.h"
DB/SAI: Add SAI for Val'kyr Guardian & Val'kyr Protector
Closes #3280
DB/SAI: Fix for QUEST 12512 "Leave no one behind" by Pitcrawler
Closes #6583
Merge branch 'master' of https://github.com/TrinityCore/TrinityCore