add dependencies for s3

requirements.txt

@@ -1,20 +1,28 @@
 bleach==2.1.4
+boto3==1.9.139
+botocore==1.12.139
 Django==2.1.8
 django-classy-tags==0.8.0
 django-environ==0.4.5
 django-js-asset==1.2.2
 django-mptt==0.9.1
 django-nyt==1.1.2
 django-sekizai==1.0.0
+django-storages==1.7.1
+docutils==0.14
 gunicorn==19.9.0
 html5lib==1.0.1
+jmespath==0.9.4
 Markdown==2.6.11
 Pillow==6.0.0
 psycopg2==2.8.2
+python-dateutil==2.8.0
 pytz==2019.1
+s3transfer==0.2.0
 six==1.12.0
 sorl-thumbnail==12.5.0
 sqlparse==0.3.0
+urllib3==1.24.2
 webencodings==0.5.1
 whitenoise==4.1.2
 wiki==0.4.4