Fixed deprecation warnings

Assets/Record/GoToReplayButton.cs

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
+using UnityEngine.SceneManagement;
 
 public class GoToReplayButton : MonoBehaviour {
 
 	public void GoToReplayScene()
 	{
-		Application.LoadLevel ("Replay");
+		SceneManager.LoadScene ("Replay");
 	}
 }

Assets/Replay/GoToRecordingButton.cs

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
+using UnityEngine.SceneManagement;
 
 public class GoToRecordingButton : MonoBehaviour {
 
 	public void GoToRecordingScene()
 	{
-		Application.LoadLevel ("Record");
+		SceneManager.LoadScene ("Record");
 	}
 }