Recursive crafting works.

MA's can accept pushes.
Interfaces no alter pushing behavior depending on ICraftingMachine settings.
Fixed bug where crafting would record items that don't exist as available for the initial pull.

crafting/CraftBranchFailure.java

@@ -1,6 +1,7 @@
 package appeng.crafting;
 
 import appeng.api.storage.data.IAEItemStack;
+import appeng.util.Platform;
 
 public class CraftBranchFailure extends Exception
 {
@@ -10,7 +11,7 @@ public class CraftBranchFailure extends Exception
 	IAEItemStack missing;
 
 	public CraftBranchFailure(IAEItemStack what, long howMany) {
-		super( "this should have been caught!" );
+		super( "Failed: " + Platform.getItemDisplayName( what ) + " x " + howMany );
 		missing = what.copy();
 		missing.setStackSize( howMany );
 	}