Feature/add awesomeness

Features:
1. Restructured the hostnames to:
    portal-local.saastest.appdynamics.com
    login-local.saastest.appdynamics.com 
    download-local.saastest.appdynamics.com
2. Created self signed certificate and enabled HTTPS
3. Sendmail was not starting automagically. Fixed this in ansible script.