CAS ng git tree was changed ; still waiting for release to Pypi

requirements.txt

@@ -3,7 +3,7 @@ Django==2.0.3
 django_heroku==0.3.1
 gunicorn==19.7.1
 psycopg2-binary==2.7.4
-git+https://github.com/mingchen/django-cas-ng.git@23e755c61d58c957a056c7a321272ab5888797a9#egg=django-cas-ng
+git+https://github.com/mingchen/django-cas-ng.git@e9c0472e326087bfb839487f0736a4e1454cffda#egg=django-cas-ng
 djangorestframework==3.8.2  # Django REST Framework
 markdown==2.6.11  # Complement for Django REST framework
 django-filter==1.1.0  # Support filter in REST API