additional requirements

requirements.txt

 Django==1.7
 Django==1.7
+SQLAlchemy==0.9.8
 dj-database-url==0.3.0
 dj-database-url==0.3.0
+django-postgrespool==0.3.0
 gunicorn==19.1.1
 gunicorn==19.1.1
+psycopg2==2.5.4
 whitenoise==1.0.3
 whitenoise==1.0.3
 wsgiref==0.1.2
 wsgiref==0.1.2