Marked a couple more members as 'final'. (continuation of 441bb95)

Signed-off-by: Jeffrey Han <itdelatrisu@gmail.com>

src/itdelatrisu/opsu/downloads/DownloadNode.java

@@ -44,19 +44,19 @@ public class DownloadNode {
 	private Download download;
 
 	/** Beatmap set ID. */
-	private int beatmapSetID;
+	private final int beatmapSetID;
 
 	/** Last updated date string. */
-	private String date;
+	private final String date;
 
 	/** Song title. */
-	private String title, titleUnicode;
+	private final String title, titleUnicode;
 
 	/** Song artist. */
-	private String artist, artistUnicode;
+	private final String artist, artistUnicode;
 
 	/** Beatmap creator. */
-	private String creator;
+	private final String creator;
 
 	/** Button drawing values. */
 	private static float buttonBaseX, buttonBaseY, buttonWidth, buttonHeight, buttonOffset;

src/itdelatrisu/opsu/downloads/ReadableByteChannelWrapper.java

@@ -28,7 +28,7 @@ import java.nio.channels.ReadableByteChannel;
  */
 public class ReadableByteChannelWrapper implements ReadableByteChannel {
 	/** The wrapped ReadableByteChannel. */
-	private ReadableByteChannel rbc;
+	private final ReadableByteChannel rbc;
 
 	/** The number of bytes read. */
 	private long bytesRead;