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/TunnelConnection.java

@@ -26,12 +26,22 @@ import appeng.parts.p2p.PartP2PTunnelME;
 public class TunnelConnection
 {
 
-	public final PartP2PTunnelME tunnel;
-	public final IGridConnection c;
+	private final PartP2PTunnelME tunnel;
+	private final IGridConnection c;
 
 	public TunnelConnection( final PartP2PTunnelME t, final IGridConnection con )
 	{
 		this.tunnel = t;
 		this.c = con;
 	}
+
+	public IGridConnection getConnection()
+	{
+		return this.c;
+	}
+
+	public PartP2PTunnelME getTunnel()
+	{
+		return this.tunnel;
+	}
 }