title: What is the difference between .all() and .one() in Restangular?
body: <p>What is the difference between these two? Both seems to make a GET to /users and retrieve them.</p>
  
  <pre><code>Restangular.one('users').getList().then(function(users) {
      // do something with users
  });
  
  Restangular.all('users').getList().then(function(users) {
      // do something with users
  });
  </code></pre>
  
  <p>I understand that you can do one('users', 123) and it will retrieve /users/123 but without the second argument it seems to be the same thing. Why not just have one method in that case?</p>