Build Editorial Dashboard

[elizabethyalkut]

Initial stab: https://glitch.com/edit/#!/sr-editorial-workflow-prototype
Notes: https://docs.google.com/document/d/1YA8FpA3mQNCPk3zrJGTC-Q7YSh4aG0CcQiL2YVhod8k/edit#bookmark=id.1lftlujfjgg3

We need to sketch out concrete requirements for v.0.2.

[elizabethyalkut]

Proposal: create a table in the backend for statuses (public, needs cleaning, not reviewed), and get RAs/Lin to create a spreadsheet to mark existing content; deal with the dashboard interface later.