Prevent removal of FreedomBox pakages from Debian testing

Created by: JosephKiranBabu

This log is from apt. We must address the issues before August 2017 to ensure FreedomBox users get updates on time.

New packages going to be removed from Debian 'testing' (the maintainer might need help):
 - freedombox-setup - https://tracker.debian.org/pkg/freedombox-setup - removal on 2017-08-09
 - plinth - https://tracker.debian.org/pkg/plinth - removal on 2017-08-09
 - python-django-bootstrap-form - https://tracker.debian.org/pkg/python-django-bootstrap-form - removal on 2017-08-09 (bug: #865938)
 - syncthing - https://tracker.debian.org/pkg/syncthing - removal on 2017-08-10