Extractable item handler rework.

trunk/dist/game/data/xsd/items.xsd

@@ -80,6 +80,8 @@
 					<xs:enumeration value="equip_condition" />
 					<xs:enumeration value="equip_reuse_delay" />
 					<xs:enumeration value="ex_immediate_effect" />
+					<xs:enumeration value="extractableCountMin" />
+					<xs:enumeration value="extractableCountMax" />
 					<xs:enumeration value="etcitem_type" />
 					<xs:enumeration value="for_npc" />
 					<xs:enumeration value="handler" />