Move item caps that depend on spells/aas to be done after those are valid

Also fix Sleeper's Tomb avatar proc to be counted towards item ATK

zone/client.h

@@ -1263,6 +1263,7 @@ protected:
 	void CalcEdibleBonuses(StatBonuses* newbon);
 	void CalcAABonuses(StatBonuses* newbon);
 	void ApplyAABonuses(uint32 aaid, uint32 slots, StatBonuses* newbon);
+	void ProcessItemCaps();
 	void MakeBuffFadePacket(uint16 spell_id, int slot_id, bool send_message = true);
 	bool client_data_loaded;
 
@@ -1316,6 +1317,7 @@ private:
 	int32 GetACMit();
 	int32 GetACAvoid();
 	int32 CalcATK();
+	int32 CalcItemATKCap();
 	int32 CalcHaste();
 
 	int32 CalcAlcoholPhysicalEffect();