[8433] Implement proper store and use character specific account data.

* Base at TOM_RUS reseach save/load character specific account data in new table `character_account_data`
    * Move its in sql update from `account_data` to new table.
    * For client packets that can be send in loggined state or just after logout but assocualted
      with recently logout character add new login status STATUS_LOGGEDIN_OR_RECENTLY_LOGGOUT
    * Store low guid for loggedin player or recently logout into WorldSession.

Author: VladimirMangos, TOM_RUS

--HG--
branch : trunk

src/game/TradeHandler.cpp

@@ -453,7 +453,7 @@ void WorldSession::SendCancelTrade()
 void WorldSession::HandleCancelTradeOpcode(WorldPacket& /*recvPacket*/)
 {
     // sended also after LOGOUT COMPLETE
-    if(_player)                                             // needed because STATUS_AUTHED
+    if(_player)                                             // needed because STATUS_LOGGEDIN_OR_RECENTLY_LOGGOUT
         _player->TradeCancel(true);
 }