Core/Guilds: guild code was completely refactored and rewritten.

* OOP desing and implementation;
* all the queries are moved to prepared statements;
* guild loading is optimized;
* all the possible interaction with guild's data is done inside the guild class;
* added more hooks to GuildScript class;

WARNING: Make sure you backup your characters database before applying this change (just in case).

Known problems with guilds:
* when new member is added to the guild, MOTD is not displayed for him in guild tab of social window;
* if you add item with random property to guild bank visual representation of item below it becomes wrong (it displays wrong stack number);
* packets order differs from official: currently guild bank packet traffic is twice as more than on offy.

--HG--
branch : trunk

src/server/game/Entities/Player/Player.h

@@ -1715,12 +1715,12 @@ class Player : public Unit, public GridObject<Player>
         void SendUpdateToOutOfRangeGroupMembers();
 
         void SetInGuild(uint32 GuildId) { SetUInt32Value(PLAYER_GUILDID, GuildId); }
-        void SetRank(uint32 rankId){ SetUInt32Value(PLAYER_GUILDRANK, rankId); }
+        void SetRank(uint8 rankId) { SetUInt32Value(PLAYER_GUILDRANK, rankId); }
+        uint8 GetRank() { return uint8(GetUInt32Value(PLAYER_GUILDRANK)); }
         void SetGuildIdInvited(uint32 GuildId) { m_GuildIdInvited = GuildId; }
         uint32 GetGuildId() { return GetUInt32Value(PLAYER_GUILDID);  }
         static uint32 GetGuildIdFromDB(uint64 guid);
-        uint32 GetRank(){ return GetUInt32Value(PLAYER_GUILDRANK); }
-        static uint32 GetRankFromDB(uint64 guid);
+        static uint8 GetRankFromDB(uint64 guid);
         int GetGuildIdInvited() { return m_GuildIdInvited; }
         static void RemovePetitionsAndSigns(uint64 guid, uint32 type);