title: logout from google plus with gwt
body: <p>I am developing an aplication with gwt for login and logout from google plus but I don't found info,I also tried to return the mail when you connect but I get null.</p>
  
  <p>This is the code I use:</p>
  
  <pre><code>public void getMe(final Plus plus) {
      plus.people().get("me").to(new Receiver&lt;Person&gt;() {
          @Override
          public void onSuccess(Person person) {
              dataSvc = GWT.create(LoginService.class);
              name = person.getDisplayName();
              mail = person.getEmails().get(0).getValue();
              dataSvc.changeData("2", name, callback);
          }
      }).fire();    
  }
  </code></pre>