Katello 3.7 upgrade conflict with python2-django16

Hi,

I am facing the same issue when upgrading from katello 3.6 to katello 3.7, and seems that other users are also having problems:

I tried to blacklist/exclude but of course it complains:
→ Finished Dependency Resolution
Error: Package: pulp-server-2.16.4-1.el7.noarch (pulp)
Requires: python-django >= 1.8.0
Installed: python2-django16-1.6.11.7-5.el7.noarch (@epel)
python-django = 1.6.11.7-5.el7