Change import location of django_countries fields

This will work with both the newer and older versions.

Signed-off-by: Dan McGee <dan@archlinux.org>
Set all attributes to default values on status URL fetch

We were missing two duration-related attributes here, causing some 500
errors to happen if we had cached status_data around that didn't agree
with our current list of checked mirrors. Don't blow up on the JSON data
fetch by ensuring we provide a value, even if it is out of date.

Signed-off-by: Dan McGee <dan@archlinux.org>
A few more tweaks to the URL details template

Signed-off-by: Dan McGee <dan@archlinux.org>