[7460] Fixed possible cheating in rated arena by ressurection after relog. Author: Triply

Fix: Do not allow to remove insignia from players in arena!
    Fixed ending arena match when last player of team logs out.

--HG--
branch : trunk

src/game/Player.cpp

@@ -4137,7 +4137,7 @@ void Player::CreateCorpse()
         flags |= CORPSE_FLAG_HIDE_HELM;
     if(HasFlag(PLAYER_FLAGS, PLAYER_FLAGS_HIDE_CLOAK))
         flags |= CORPSE_FLAG_HIDE_CLOAK;
-    if(InBattleGround())
+    if(InBattleGround() && !InArena())
         flags |= CORPSE_FLAG_LOOTABLE;                      // to be able to remove insignia
     corpse->SetUInt32Value( CORPSE_FIELD_FLAGS, flags );