beginning of docs for setting up AWS.
formatting
more instructions
Update setting_up_on_aws.rst
Update setting_up_on_aws.rst

how to set up mongo
Update setting_up_on_aws.rst

basic instructions complete...
Update views.py

switching mongodb to use a single instance, because that's how the server is currently set up.
Merge pull request #32 from robchambers/feature-aws-docs

documentation on setting up aws server