remove outdated help icon on CP > Settings page #4286
#4549: Replace media_description with os_file_description in all file view mode displays.

Also, remove 255 character limit from the field.
Work on read-only mode.
Add custom message when site in read-only mode.
Fix comments.
Add site/register path to be disabled in readonly mode.
Work on read-only mode.
Work on ui for readonly mode.
WIP scaffold out update hook modifications for #4600
WIP more logic #4600
Add menu item.
Add roles.
#4613: Add weights to box plugins and use them to reorder them in dropdown.
Merge conflicts.
Another merge conflict.
#4555: Don't show temporary files in cp/files views.
verify output matches expectations, test on scholar locally #4600
merge conflicts #4600
Follow up to review #4600
Merge pull request #4640 from openscholar/4636

PR that merges the permissions UI into 3.x