fixes

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

src/main/java/storagecraft/block/BlockBase.java

@@ -13,7 +13,7 @@ import storagecraft.StorageCraft;
 import storagecraft.tile.TileBase;
 import storagecraft.util.InventoryUtils;
 
-public class BlockBase extends Block {
+public abstract class BlockBase extends Block {
 	private String name;
 
 	public BlockBase(String name) {