Add dependency for devise
Create uuid-ossp extension in deployster schema
Create mailer for user messages
Set delivery method to :smtp for vagrant environment
Remove .keep
Basic Devise configuration and locale
Use db:schema:deploy and not db:deploy
Use double quotes for DROP EXTENSION
Make start/stop/restart devenv tasks global
Use correct argument order for db:schema:revert task
Add global configuration for active_model_serializers
Use hash-based locations for deployster-client
Basic email/password authentication
Basic CRUD wo/authorization for users
Add license plate and class doc

[skip ci]
Remove .keep

[skip ci]
User older config style for Hound config

[skip ci]
Merge pull request #4 from deployster/feature/authentication

Set up basic authentication with Devise