update notepad tutorial to change activity title in NoteEdit class

Change-Id: I58e8919dab1b82696d11e5e578419f30b47b0737

tutorials/NotepadCodeLab/Notepadv2Solution/src/com/android/demo/notepad2/NoteEdit.java

@@ -33,6 +33,7 @@ public class NoteEdit extends Activity {
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.note_edit);
+        setTitle(R.string.edit_note);
 
         mTitleText = (EditText) findViewById(R.id.title);
         mBodyText = (EditText) findViewById(R.id.body);