Merge pull request #3288 from BlackDex/admin-interface-updates

src/api/admin.rs

src/db/models/collection.rs

src/db/models/event.rs

src/db/models/group.rs

src/static/scripts/admin.css

src/static/scripts/admin_diagnostics.js

src/static/scripts/admin_organizations.js

src/static/scripts/admin_users.js

src/static/scripts/datatables.css

src/static/scripts/datatables.js

src/static/templates/admin/diagnostics.hbs

src/static/templates/admin/organizations.hbs

src/static/templates/admin/users.hbs