Daniel Stone authored Jun 09, 2018 and Pekka Paalanen committed Jun 11, 2018

Update bug and Git URLs for GitLab; the site has also been served over
HTTPS for quite some time.

Signed-off-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>