Updated python-django packages fix security vulnerabilities:

Jedediah Smith discovered that Django incorrectly handled underscores
in WSGI headers. A remote attacker could possibly use this issue to
spoof headers in certain environments (CVE-2015-0219).

Mikko Ohtamaa discovered that Django incorrectly handled user-supplied
redirect URLs. A remote attacker could possibly use this issue to
perform a cross-site scripting attack (CVE-2015-0220).

Alex Gaynor discovered that Django incorrectly handled reading files
in django.views.static.serve(). A remote attacker could possibly use
this issue to cause Django to consume resources, resulting in a denial
of service (CVE-2015-0221).