Some more crafting work.

crafting/CraftingMissingItemsException.java

@@ -0,0 +1,17 @@
+package appeng.crafting;
+
+import appeng.api.storage.data.IAEItemStack;
+import appeng.api.storage.data.IItemList;
+
+public class CraftingMissingItemsException extends Exception {
+
+	private static final long serialVersionUID = -7517510681369528425L;
+
+	final public IItemList<IAEItemStack> missingItems;
+	
+	public CraftingMissingItemsException( IItemList<IAEItemStack> missing )
+	{
+		missingItems = missing;
+	}
+	
+}