Core/Spells: Fixed Gouge spell.

Signed-off-by: bootz <bootz@projectskyfire.org>
Core/Battlegrounds: Removal & Replace Handler Battleground renaming to follow suit.
- this is a compound word not 2 individual ones, fixing to follow suit with rest of
- core.

Signed-off-by: bootz <bootz@projectskyfire.org>
Merge branch 'master' of https://github.com/ProjectSkyfire/SkyFireEMU