gunicorn==19.6.0
whitenoise==3.1
dj-database-url==0.4.1
psycopg2==2.6.1

gunicorn==19.6.0
whitenoise==3.1
dj-database-url==0.4.1
psycopg2==2.7

Fix bug with Heroku deploy on bad psycopg2 version
Fix bug with Heroku deploy on bad psycopg2 version