DB Layer:

- Make SQL Transactions actual objects used in code. (Thanks to Derex for the idea)
* Uncommitted transactions will be automatically rolled back and cleaned up using ACE_Refcounted_Auto_Ptr, so no need to call Rollback() in the code.
* Prevents recursive transactions and makes developers aware of transactions going on.
* Gets rid of unneccesary overhead iterating over a concurrent map.
- Some cleanups in affected code, including better usage of transaction control in AH / mail related code to prevent data loss.

*** Experimental, use at own risk, recommended to backup your DBs. ***

--HG--
branch : trunk

src/server/game/Entities/Pet/Pet.h

@@ -191,11 +191,11 @@ class Pet : public Guardian
         bool IsPetAura(Aura const* aura);
 
         void _LoadSpellCooldowns();
-        void _SaveSpellCooldowns();
+        void _SaveSpellCooldowns(SQLTransaction& trans);
         void _LoadAuras(uint32 timediff);
-        void _SaveAuras();
+        void _SaveAuras(SQLTransaction& trans);
         void _LoadSpells();
-        void _SaveSpells();
+        void _SaveSpells(SQLTransaction& trans);
 
         bool addSpell(uint32 spell_id,ActiveStates active = ACT_DECIDE, PetSpellState state = PETSPELL_NEW, PetSpellType type = PETSPELL_NORMAL);
         bool learnSpell(uint32 spell_id);