Add a bash script to run the app with gunicorn.
Supervise run script instead of gunicorn directly.
Add a '.env' file as a requirement for the run script. An example file is located in the root directory.
Make `.env` file optional.
Exit run script on command failures and undeclared variables.
Load config settings from environment.
Ignore environment files.
Remove defaults for config settings.
Allow config settings for the logger.
Add tasks to make switching between environments more convenient.
Get password for postgres from environment.
Fix provisioning for vagrant 1.5.
Refactor configuration.
Use config settings for testing from environment.
Keep example .env file simple.