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/cache/helpers/TunnelIterator.java

@@ -28,9 +28,9 @@ import appeng.parts.p2p.PartP2PTunnel;
 public class TunnelIterator<T extends PartP2PTunnel> implements Iterator<T>
 {
 
-	final Iterator<T> wrapped;
-	final Class targetType;
-	T Next;
+	private final Iterator<T> wrapped;
+	private final Class targetType;
+	private T Next;
 
 	public TunnelIterator( final Collection<T> tunnelSources, final Class clz )
 	{