Bug#896161: UDD/dmd: Please highlight outdated backports

[Simon McVittie <smcv@debian.org>]

Package: qa.debian.org
Severity: wishlist
User: qa.debian.org@packages.debian.org
Usertags: udd

https://backports.debian.org/stretch-backports/overview/ highlights
outdated backports (upstream version in stretch-backports < upstream
version in buster) in red, and older revisions (same upstream version,
but smaller Debian revision) in orange. It would be useful if the DMD
did the same, so that maintainers can get an overview of the packages
they maintain at a glance.

(https://qa.debian.org/developer.php does highlight outdated backports.)

    smcv