fixes

- remove ImporterMode, just use an int
- make some classes abstract
- made range on TE's bigger

src/main/java/storagecraft/item/ItemBase.java

@@ -4,7 +4,7 @@ import net.minecraft.item.Item;
 import net.minecraft.item.ItemStack;
 import storagecraft.StorageCraft;
 
-public class ItemBase extends Item {
+public abstract class ItemBase extends Item {
 	private String name;
 
 	public ItemBase(String name) {