Update File Entity + Fix Features Override

In current HEAD there is still a persistent feature being overridden it looks like this will be resolved by updating file entity.

Additionally there were a few other bugs caught upstream.

The feature issue itself is below:

This is because of the following hook:

/**
 * Alter default file types.
 *
 * @see hook_file_default_types()
 */
function wetkit_bean_file_default_types_alter(&$types) {
  $types['document']->mimetypes[] = 'text/html';
}

Unfortunately this is not properly handled on the file entity side atm so need a workaround.