Implement the root endpoint.
Rename the 'drupal' key to 'couchdb'.
Add back the restriction per format.
Add space before array.
Merge pull request #17 from dickolsson/2370321-root-endpoint

Issue #2370321 by jeqq: Implement the root / endpoint.
Implement the session endpoint and GET method.
Add back restriction per format.
Test session endpoint when the user is not admin.
Correct the user name.
Merge pull request #18 from dickolsson/2370257-_session-endpoint

Issue #2370257 by jeqq: Implement GET for the /_session endpoint.
Add support for multipart responses. Work in progress.
Refactor resource controller.
Move the getParts() method to the parent class.
Get response body without the boundary before chunk data.
Fix the curl error and get the correct response body.
Test the multipart response.