WIP: add specs for mention emails after comment post
WIP: emailing those mentioned in a comment
remove code that now lives in comment.rb
basic validation on User.username
lookup user from the comment and add specs
[#79046972] Update author card styling
Large click areas for edit overlay
[#79384948][WIP] Migration to remove AuthorGroup
[WIP] Fix Author update
Make a special subscription for authors.

Serialize down the array of the paper's authors when one changes.
Use the "all" array to populate authors.

Don't use the paper's hasMany association for now since it's not
reliable.
[#79384948] Throw an exception if migration is reverted
[#79384948] Remove author group template
Schema changed
Fix Author View hover class toggle
Fix JSON response from Author Controller
[WIP]
Drag 'n' drop
fix spec: use Comment#commenter instead of #user
Fix Teaspoon Author setup