Game server/skill system: type 5 (cure/resurrection-like skills) now support groups. Resolves #315.
GameServer/Character : Reset skill and stat points lua commands.
Merge pull request #318 from xAKUMAx/master

Game server: Implemented Lua bindings for ResetStatPoints() & ResetSkillPoints().
Game server/skill system: fixed type 3/HP absorption skills - the caster should absorb the damage; refs #317.
Game server: Implemented Lua bindings for GiveLoyalty() & RobLoylaty().
Game server: SendLoyaltyChange() now acts accordingly to whether or not the NP was gained via a kill.
Merge pull request #319 from xAKUMAx/master

Game server: Implemented Lua bindings for GiveLoyalty() & RobLoyalty().
Game server: removed redundant RobLoyalty() & GiveLoyalty() methods.