[svn] * Avoid access to bag item prototype for getting bag size, use related item update field instead as more fast source.

* Better check client inventory pos data received in some client packets to skip invalid cases.
* Removed some unnecessary database queries.
* Make guid lookup for adding ignore async.
* Added two parameter versions of the AsyncQuery function
* Make queries for adding friends async. - Hunuza
* Replace some PQuery() calls with more simple Query() - Hunuza
* Mark spell as executed instead of deleteable to solve crash.
*** Source mangos.

**Its a big commit. so test with care... or without care.... whatever floats your boat.

--HG--
branch : trunk

src/game/SocialMgr.h

@@ -147,7 +147,7 @@ class SocialMgr
         void GetFriendInfo(Player *player, uint32 friendGUID, FriendInfo &friendInfo);
         // Packet management
         void MakeFriendStatusPacket(FriendsResult result, uint32 friend_guid, WorldPacket *data);
-        void SendFriendStatus(Player *player, FriendsResult result, uint32 friend_guid, std::string name, bool broadcast);
+        void SendFriendStatus(Player *player, FriendsResult result, uint32 friend_guid, bool broadcast);
         void BroadcastToFriendListers(Player *player, WorldPacket *packet);
         // Loading
         PlayerSocial *LoadFromDB(QueryResult *result, uint32 guid);