[FEATURE] Remove index.js, leave only specs.
[FEATURE] Test with sequelize adapter, upgrade mocha.
[FEATURE] Add travis.yml for continuous integration.
[FEATURE] Bump patch.
[CHORE] Move travis to .travis.
[CHORE] Reduce to single build matrix using Heorku postgres.
[DOC] Add travis build status to README.
[TEST] add test for getting and updating a user