Reduces visibility of internal fields/methods

Reduces the visibility of all fields to private and create setters/getters
when necessary. Exceptions are fields with GuiSync as these need to be
public.

Reduces the visibility of internal methods to private/protected/default when possible.

src/main/java/appeng/me/storage/VoidFluidInventory.java

@@ -32,7 +32,7 @@ import appeng.tile.misc.TileCondenser;
 public class VoidFluidInventory implements IMEInventoryHandler<IAEFluidStack>
 {
 
-	final TileCondenser target;
+	private final TileCondenser target;
 
 	public VoidFluidInventory( final TileCondenser te )
 	{