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/tile/misc/TileLightDetector.java

@@ -29,8 +29,8 @@ import appeng.util.Platform;
 public class TileLightDetector extends AEBaseTile implements IUpdatePlayerListBox
 {
 
-	int lastCheck = 30;
-	int lastLight = 0;
+	private int lastCheck = 30;
+	private int lastLight = 0;
 
 	public boolean isReady()
 	{