Store config files in the same place

[MoralCode]

I notice there are many config files referenced thoughout this repo.

• db.config.json in __init__, db, and engine within the cli module
• augur.config.json in the CLI
• config.yml in app/view/init, for which CONFIG_LOCATION=/config/config.yml in the dockerfile is defined

Can we standardize the concept of a config directory so all these files can be in one place and we can start reorganizing how config is done?