Use site’s preferred format for dates

I’d like to suggest using the site’s preferred date format (and language) for displaying dates of feed items.

It can be accomplished by changing line 175 of super-rss-reader.php from:

$date = $item->get_date('j F Y');

to

$date = date_i18n( get_option('date_format'), $item->get_date('U') );

Thank you!