ckanapi-exporter

ckanapi-exporter
ndg-httpsclient==0.4.0
requests==2.3.0
pyOpenSSL==0.15.1
pyasn1==0.1.7

Fix SNI support for python 2.x.
Fix SNI support for python 2.x.

Adds some dependencies to requirements.txt and updates the requests
library to 2.3.0.
