User names in tooltips now.
Changed the user shown in session to be an actual UserView.
Can toggle button to attend/unattend, but no server acknowledgement.
Added unattend server logic, and a simple test for success.
Added a few more tests for unattend, and server broadcast logic.
Fixed up first-attendee behavior, and wrote tests to confirm.
Changed how we extract the picture field from JSON to deal with lazy loading.
Fixed some issues with rendering and user pictures.
Fixed a missing library.
Ugly wrangling of the picture situation.
Cleaner no-one-signed-up-yet notice.
Added a 'full' indicator, too. Added checks against max attendees.
Added a test for attendee capping.
Merge branch 'unattend'