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/integration/modules/helpers/FMPPacketEvent.java

@@ -26,10 +26,15 @@ import net.minecraftforge.fml.common.eventhandler.Event;
 public class FMPPacketEvent extends Event
 {
 
-	public final EntityPlayerMP sender;
+	private final EntityPlayerMP sender;
 
 	public FMPPacketEvent( EntityPlayerMP sender )
 	{
 		this.sender = sender;
 	}
+
+	public EntityPlayerMP getSender()
+	{
+		return this.sender;
+	}
 }