Install nginx & serve the dashboard on langgar URL

[irff]

references:

• https://www.digitalocean.com/community/tutorials/how-to-serve-flask-applications-with-uwsgi-and-nginx-on-ubuntu-14-04
• http://flask.pocoo.org/docs/0.10/deploying/uwsgi/
• https://realpython.com/blog/python/kickstarting-flask-on-ubuntu-setup-and-deployment/
• http://vladikk.com/2013/09/12/serving-flask-with-nginx-on-ubuntu/

[irff]

Please assign yourself if you want to tackle this issue

[kandito]

Dashborad deployed using uwsgi + nginx (http://128.199.120.29/data) If there is new commit/milestone, i will re-deploy it.