Misc: Use override and final C++11 keywords in a few places (mostly scripts)

OVERRIDE and FINAL are TC macros (expand to nothing if compiler does not  support C++11)
DB/Misc: Fix some runtime errors

Also spawns 2 missing doors on Old Hyjal, this doors needs to be scripted.
DB/Misc: Fix typo
DB/Spawns: Add missing Gameobjects into The Shattered Halls

Note: some doors needs to be scripted after this.
Create 2013_07_08_00_world_gameobject.sql

SQL: Fix fail in 5a6eacfa3361c87c776915204caef9be2851486e
Core: Scripting: Shade of Akama WIP
Core / Scripting: fix a few warnings.
Core/Scripting: Fix some errors in Shade of Akama script.
Scripted: Some cleanups + ninja changes
Core / Scripting: Updates to Shattered Halls and added Instance save.
Core / Scripting: Coverted a couple Shattered Halls npc scripts to use events
Core/Scripting: A couple fixes for shattered Halls
Core/Scripting: Few minor fixes for Shattered Halls.
Core/Scripting: Fix up Hellfire Ramparts instance and add Instance save.
Core/Scripting: Converted Watchkeeper Gargolmar to use events.
DB/Misc: Spawn some missing gameobjects

Data by KirkHammett
Core/Scripting: A little update to Hellfire Ramparts. Thanks joschiwald.
Core/Scripting: A couple fixes for Hellfire Ramparts.
Core/Scripting: Fixup Onyxia Script to use events.
Core/Scripting: Some cleanup for Hyjal Script.