Updated make_connection() to support AWS
Updated make_connection() to support AWS

* Reading region info from the config
* Deciding is_secure using EC2_URL

Signed-off-by: Shashank Sahni <48273395e0436587f8f1beebda52d256c947abb2@gmail.com>

siel-iiith/MultiStack,siel-iiith/MultiStack