title: RoboMongo - Cannot Remove Documents from Collection
body: <p>I'm using RoboMongo to delete a number of documents that match a query. However, it is saying no documents have been delete with the following:      </p>
  
  <pre><code>db.getCollection('assets').remove( { "source": "red" } );        
  </code></pre>
  
  <p>However, this works perfectly:       </p>
  
  <pre><code>db.getCollection('assets').find( { "source": "red" } );  
  </code></pre>
  
  <p>and displays all the records with the source "red".</p>
  
  <p>Is there any reason why the records are not being removed and robomongo is just outputting 0?</p>
  
  <p>Kind Regards,</p>