Fix issue where no URL would be retrieved for search results.

src/main/java/moe/nekojimi/chords/TrackRequest.java

@@ -110,7 +110,12 @@ public class TrackRequest implements Comparable<TrackRequest>
 
     public URL getUrl()
     {
-        return url;
+        if (url != null)
+            return url;
+        else if (result != null)
+            return (result.getLink());
+        else
+            return null;
     }
 
     public void setUrl(URL url)