Commenting service integrated
lms and cms working with supervisor and nginx

1. mongo modules
2. postgres db
3. requirements upgraded

Signed-off-by: himangshu <hjhazarika@gmail.com>
Merge branch 'master' of github.com:himangshuj/edx-platform into sokratik-master

Signed-off-by: himangshuj <himangshu@sokratik.com>

Conflicts:
	common/djangoapps/student/views.py