updated requirements to use celery

requirements.txt

 argparse==1.2.1
+amqp==2.1.4
 beautifulsoup4==4.3.2
+billiard==3.5.0.2
+celery==4.0.2
 Django>1.11, <1.12
 django-allauth==0.30.0
 django-analytical==2.0.0
@@ -19,6 +22,7 @@ django-redis-cache==1.6.4
 djangorestframework==3.3.2
 flake8==2.5.0
 gunicorn==19.6.0
+kombu==4.0.2
 Markdown==2.6.5
 mccabe==0.3.1
 MySQL-python==1.2.5
@@ -27,10 +31,11 @@ pep8==1.6.2
 pyflakes==1.0.0
 python-openid==2.2.5
 pytz==2017.2
-redis==2.10.3
+redis==2.10.5
 requests==2.5.1
 requests-oauthlib==0.4.2
 six==1.8.0
+vine==1.1.3
 wsgiref==0.1.2
 wheel==0.26.0
 Whoosh==2.7.0