Save replays in a new thread.

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

src/itdelatrisu/opsu/replay/Replay.java

@@ -230,8 +230,11 @@ public class Replay {
 			}
 		}
 
-		// write file
-		File file = new File(dir, String.format("%s.osr", getReplayFilename()));
+		// write file in new thread
+		final File file = new File(dir, String.format("%s.osr", getReplayFilename()));
+		new Thread() {
+			@Override
+			public void run() {
 				try (FileOutputStream out = new FileOutputStream(file)) {
 					OsuWriter writer = new OsuWriter(out);
 
@@ -309,6 +312,8 @@ public class Replay {
 					ErrorHandler.error("Could not save replay data.", e, true);
 				}
 			}
+		}.start();
+	}
 
 	/**
 	 * Returns the file name of where the replay should be saved and loaded,