Yoast/wordpress-seo — pull request #615 by iarenaza (2014-01-27 20:37:56+00:00)
Title: Issue 571: fb:admins meta tag not added to the page

fb:admins meta tag is not added to the page if we have a single fb
admin and the Facebook user id of the admin is string that looks
like a valid integer value.

Signed-off-by: Iñaki Arenaza