Shared/Build: Restore disabled warnings on Visual Studio

Restore 2 disabled warnings, 1 already disabled in CMake with the WITH_WARNINGS flag set to False and the other disabled by default as stated in VS documentation http://msdn.microsoft.com/en-us/library/aa984150.aspx
DB/SAI: Fate of the Titans
DB/SAI: So Far, So Bad
DB/SAI: The Murketh and Shaadraz Gateways.
DB/Error: Delete empty guid addon
DB/SAI: Misc Fixes 

Authors @untaught @dr-j @MitchesD
Fixes #10847 Fixes #10844 Fixes #10830 Fixes #10829 Fixes #10830
DB/SAI: Missing addition
Core/Auras:
Fix removing auras when player reset talents or changing/leaving shapeshift

Close #10763
Close #10809
Merge pull request #10864 from zorix/auras

Core/Auras: Fix removing auras when player reset talents or changing/leaving shapeshift

Close #10763
Close #10809
Core/Achievements: Implemented ACHIEVEMENT_CRITERIA_TYPE_KILL_CREATURE_TYPE
Core: Fix non pch build
Core/Script:
Added missing NULL pointer check
Merge pull request #10874 from zorix/PR1

Core/Script:
Core/Achievement: Fix warning
DB/Errors: Misc db error fixes

Db errors fixed by @untaught PrevQuest fixes by @dr-j and @Crysicle
Fixes #10370 Fixes #5064 Partially takes care of #10747 - more to come.
Just because....
Core/Players: Implemented actionbar dropdown menus.
Core/Spells: Do not bypass target checks when handling SPELL_AURA_ADD_TARGET_TRIGGER.

Fixes ie. Chilblains being applied to the DK on login.
Core/Spells: Since patch 4.0.1 Hunter's Mark is limited to a 30 seconds duration in PvP.
Core/Units: Fixed Moonkin forms for Trolls and Worgens, as well as epic Flight forms.

Also (hack?)fixed Glyph of Arctic Wolf.