Scripts/Icecrown: Fix quest The Flesh Giant Champion

Closes #9040
Closes #10294
Scripts/Icecrown: Fix code style and use "best practices" on previous commit (c536ba510)
CMake/MSVC: Fix VS 2013 compile -- Zm500 hack is no longer required

Signed-off-by: Nay <dnpd.dd@gmail.com>
Scripts/Icecrown: Use guid instead of cached Creature* to avoid crashes in npc_margrave_dhakar
DB/NPCs: Fix Margrave Dhakar equipment
Core/Misc: Change creatures and gameobject phasemask from 16 to 32 bits

Signed-off-by: Nay <dnpd.dd@gmail.com>
SQL: Rename in correct name