Battlegrounds → database Relation

File in server/game/Battlegrounds	Includes file in server/database
ArenaTeam.cpp	Database / DatabaseEnv.h
ArenaTeam.h	Database / DatabaseEnvFwd.h
ArenaTeamMgr.cpp	Database / DatabaseEnv.h
Battleground.cpp	Database / DatabaseEnv.h
BattlegroundMgr.cpp	Database / DatabaseEnv.h