Users can perform basic editing of rich text Pub and Action content

[gabestein]

For "rich" content, particularly journal article-style pubs, we want to expose some kind of rich editor for string fields. This editor should include most of the functionality currently available to PubPub users (does not need to be real-time/multiplayer to begin with).

Why

• Support Vanderbilt contract
• Support Legacy to Platform migrations
• Better demos to prospective clients

Assumptions

• The editor will maintain the latest state of a single field of a Pub
• For certain elements that should be children or siblings, the editor will hook into the API to create child pubs and render them where needed
• The editor doesn't need to be collaborative to start, but should have a path for supporting it in the future
• The editor is just one potential editor, essentially a "view" of a string field.

Open Questions

• We want to support annotations both within this editor and for external content. Those annotations will create new child pubs. Is there a way to make this annotation process the same or similar for internal and external users?