Rename test files to test_.
Add Honcho (foreman alternative in Python) file(s).

The reason we have both Procfile and Honchofile is to be able to run both the workers and the web server in a single dyno on Heroku.
Read settings from environment variables instead of a settings file.

This is mostly done to make it easier to run re:dash on Heroku but should be convenient in other platforms too.
Fix: allow passing relative path for assets.
Bump version.
Example .env file.
Fix CircleCI configuration
Merge pull request #93 from EverythingMe/feature_env

Feature: better Heroku support - move configuration to environment variables & Procfile
Fix: when updating query text the hash should change.
Merge pull request #94 from EverythingMe/fix_query_hash_not_updating

Fix: when updating query text the hash should change.
CirlceCI: no longer need to delete settings.py.
Allow user to set the stacking of the chart.
Merge pull request #95 from EverythingMe/feature_stacking_selection

Allow user to set the stacking of the chart.
Fix: allow queries.description to be null.
Merge pull request #96 from EverythingMe/fix_description_nullable

Fix: allow queries.description to be null (+ migration)
Bring back the ability to set allowed external users & publicly open re:dash.
If only domain specified and not external users, use federated login.
Merge pull request #98 from EverythingMe/feature_allow_external_users

Feature: allow external users
Procfile changes:

1. Renamed Honchofile -> Procfile.heroku and changed it to work better with Heroku.
2. Added Procfile.dev for development.
Merge pull request #99 from EverythingMe/feature_allow_external_users

Procfile changes: