Model for restart policies.
Sketch of FLOC-1021.
Work around hynex/charactersitic#22.
Get rid of serialize_to_docker in _model.
Fix Application (default_values and Attribute are incompatible).
Make tests pass for _model.
test-case-name
Unit.__repr__.
Add tests for restart policies.
Make maximum_retry_count optional.
Implementation.
Acceptance test for postgres
Added comment to postgres doc explaining where the tests are
Removed submission note
Copied environment variables test and comment over
lint
Addressed review comment: Removed unnecessary variables
Replace Psycopg2 with pg800
Added pg8000 to setup.py
Addressed review comment: Added separate test for environment variable usage in isolation, without moving.