Fixed compile errors and some typos

--HG--
branch : trunk

src/game/Player.cpp

@@ -4163,6 +4163,7 @@ void Player::DeleteFromDB(uint64 playerguid, uint32 accountId, bool updateRealmC
         {
             Field *fields = resultMail->Fetch();
 
+            uint32 mail_id       = fields[0].GetUInt32();
             uint16 mailType      = fields[1].GetUInt16();
             uint16 mailTemplateId= fields[2].GetUInt16();
             uint32 sender        = fields[3].GetUInt32();