no issue
- drop `jshint`, `jscs`, and `ember-suave` dependencies
- remove `grunt` related linting dependencies and tasks
- remove linting build from Travis so that linting can be performed as part of the normal test suite (refs TryGhost/Ghost#7427)
- add `ember-cli-eslint` and `eslint-plugin-ember-suave` dependencies
- configure `eslint` to match our previous coding style
- update config to run eslint tests as part of the normal test run
- add `npm run lint` command to only run linter tests
issue TryGhost/Ghost#7562
- removes the custom endpoint so that we always use `/authentication/token`
- adds missing `grant_type` attribute to our auth data so that the server can switch appropriately
issue TryGhost/Ghost#7452, requires TryGhost/Ghost#7451
- use a `ghostOAuth` config flag to switch between the old-style per-install auth and centralized OAuth auth based on config provided by the server
- add OAuth flows for:
- setup
- sign-in
- sign-up
- re-authenticate
- add custom `oauth-ghost` authenticator to support our custom data structure
- add test helpers to stub successful/failed oauth authentication
- hide change password form if using OAuth (temporary - a way to change password via oauth provider will be added later)