* Implement item limit category (based on changes by VladimirMangos)

* Additional check for HandleAutoBankItemOpcode (thanks to VladimitMangos)
* Properly show empty vendor list for empty item list (author: a1ien)
* More stricted checks for store operations (thanks to VladimirMangos)
* Prevent autostoring of not empty bags (thanks to L1ghtGu4rd)

Changes need testing. Please post bugs on our tracker.

--HG--
branch : trunk

src/server/game/DataStores/DBCEnums.h

@@ -336,6 +336,12 @@ enum ItemEnchantmentType
     ITEM_ENCHANTMENT_TYPE_PRISMATIC_SOCKET = 8
 };
 
+enum ItemLimitCategoryMode
+{
+    ITEM_LIMIT_CATEGORY_MODE_HAVE  = 0,                      // limit applied to amount items in inventory/bank
+    ITEM_LIMIT_CATEGORY_MODE_EQUIP = 1,                      // limit applied to amount equipped items (including used gems)
+};
+
 enum TotemCategoryType
 {
     TOTEM_CATEGORY_TYPE_KNIFE   = 1,

src/server/game/DataStores/DBCStructure.h

@@ -1060,7 +1060,7 @@ struct ItemLimitCategoryEntry
     //char*     name[16]                                    // 1-16     m_name_lang
                                                             // 17 name flags
     uint32      maxCount;                                   // 18, max allowed equipped as item or in gem slot
-    //uint32      unk;                                      // 19, 1 for gems only...
+    uint32      mode;                                       // 19, 0 = have, 1 = equip (enum ItemLimitCategoryMode)
 };
 
 struct ItemRandomPropertiesEntry

src/server/game/DataStores/DBCfmt.h

@@ -69,7 +69,7 @@ const char ItemBagFamilyfmt[]="nxxxxxxxxxxxxxxxxx";
 //const char ItemDisplayTemplateEntryfmt[]="nxxxxxxxxxxixxxxxxxxxxx";
 //const char ItemCondExtCostsEntryfmt[]="xiii";
 const char ItemExtendedCostEntryfmt[]="niiiiiiiiiiiiiix";
-const char ItemLimitCategoryEntryfmt[]="nxxxxxxxxxxxxxxxxxix";
+const char ItemLimitCategoryEntryfmt[]="nxxxxxxxxxxxxxxxxxii";
 const char ItemRandomPropertiesfmt[]="nxiiiiissssssssssssssssx";
 const char ItemRandomSuffixfmt[]="nssssssssssssssssxxiiiiiiiiii";
 const char ItemSetEntryfmt[]="dssssssssssssssssxiiiiiiiiiixxxxxxxiiiiiiiiiiiiiiiiii";