Idea for further module simplification: move codegen'd library into it's own
directory (with it's own README, tests, etc), and reference it here via
symlink.

- schema.org metadata for releases

additional tests
- full object fields actually getting passed e2e (for rich_app)
- implicit editor.active_edit_group behavior
- modify existing release via edit mechanism (and commit)
- redirect a release to another (merge)
- update (via edit) a redirect release
- api: try to reuse an accepted edit group
- api: try to modify an accepted release
- api: multiple edits, same entity, same editgroup

views
- oldest un-merged edits/edit-groups
- changelog more like a https://semantic-ui.com/views/feed.html ?
- instead of grid, maybe https://semantic-ui.com/elements/rail.html

backlog
- make debugbar really optional (don't import unless we're in debug mode)