title: Change name of Laravel's created_at and updated_at
body: <p>Can I map Laravel's timestamps from:</p>
  
  <p><code>created_at</code> to <code>post_date</code> and <code>post_date_gmt</code>?</p>
  
  <p><code>updated_at</code> to <code>post_modified</code> and <code>post_modified_gmt</code>?</p>
  
  <hr>
  
  <p>I'm migrating a Wordpress application to Laravel.</p>
  
  <p>I'm accessing a copy of the Wordpress database using Laravel.  The live version of the database is still in use so I don't want to change the schema.</p>
  
  <p>The Posts table has <code>post_date</code>, <code>post_date_gmt</code>, <code>post_modified</code> and <code>post_modified_gmt</code>, but Laravel is expecting <code>created_at</code> and <code>updated_at</code>.</p>
  
  <p>Is there anyway to change the column names that Laravel looks for?</p>
  
  <p>I'd like Laravel to update the timestamps of all the columns that are already there.</p>