title: Redux-observable epic dispatch two actions
body: <p>I have the following epic in redux-observable</p>
  
  <pre><code>export const landingEpic = action$ =&gt; (
      action$.ofType('LOAD_USERS').delay(5000).map(() =&gt; ({
          type: 'USERS_LOADED',
          UserList: ['a','b','c','d']
      }))
  );
  </code></pre>
  
  <p>So far I am fine, however I want the epic to dispatch a 'LOADING_USERS' action so that I can display a processing message, while the users are being loaded.  Is the epic the right place to do this, and if so how do I do this.  If the epic is not the place to do this then where do I do this?</p>