title: Posts query including meta and greater than date
body: <p>I'm struggling to get a working solution with this <code>wp_query</code>. I currently have some custom settings which are assigned to posts, one is whether or not the post is 'featured' and the second is a date and time for the post to end (no longer display in the results). I have the query working with the feature, but just need to work this end date into it, here is the query working find with the 'featured':</p>
  
  <pre><code>WP_Query('meta_key=skyali_feature&amp;showposts=4&amp;orderby=post_date');
  </code></pre>
  
  <p>The end date is set in the <code>wp_postmeta</code> table where <code>meta_key</code> is 'the_date' and the <code>meta_values</code> look like this '05/16/2013 05:24'. I would like to edit the above query where if 'the_date' has been set posts are only included if the 'the_date' is greater that todays date and time.</p>
  
  <p>Here is my failed attempt:</p>
  
  <pre><code>WP_Query(
     'meta_key=skyali_feature&amp;meta_key=the_date&amp;meta_compare=&gt;=&amp;meta_value='
     .date('d/m/Y H:i')
     .'&amp;showposts=4&amp;orderby=post_date&amp;orderby=the_date'
  );
  </code></pre>