[7901] Refactoting pet action bar related code. Fixed some related bugs. Author: VladimirMangos

* Correctly update action bar at loading and other cases when listed unlearned/not existed spells
    * Avoid send data by PetSpellInitialize() many times while pet loading

--HG--
branch : trunk

src/game/Pet.h

@@ -199,8 +199,9 @@ class Pet : public Guardian
         bool learnSpell(uint32 spell_id);
         void learnSpellHighRank(uint32 spellid);
         void InitLevelupSpellsForLevel();
-        bool unlearnSpell(uint32 spell_id, bool learn_prev);
-        bool removeSpell(uint32 spell_id, bool learn_prev);
+        bool unlearnSpell(uint32 spell_id, bool learn_prev, bool clear_ab = true);
+        bool removeSpell(uint32 spell_id, bool learn_prev, bool clear_ab = true);
+        void CleanupActionBar();
 
         PetSpellMap     m_spells;
         AutoSpellList   m_autospells;
@@ -249,4 +250,4 @@ class Pet : public Guardian
             assert(false);
         }
 };
-#endif
+#endif