Remove ppa:chris-lea/python-django because is part of ppa:archivematica/exernals-dev thanks to Austin.
Remove ppa:chris-lea/python-django because is part of ppa:archivematica/exernals-dev thanks to Austin.

Autoconverted from SVN (revision:1446)

artefactual/archivematica-history,artefactual/archivematica-history,artefactual/archivematica-history,artefactual/archivematica-history