if you aren't using django's auth system the NEXUS_SKIP_INSTALLED_APPS_REQUIREMENTS setting allows you to bypass this requirements check.
Added a setting NEXUS_SKIP_INSTALLED_APPS_REQUIREMENTS that allows yo…
…u to have an app using nexus that doesn't use django.contrib.auth or django.contrib.sessions.
Merge pull request #3 from eventbrite/master
not everyone uses django auth, don't couple nexus to it.