closes#5338
- moves skip link to below the submit button
- makes the submit button better represent form status
- posts notifications based on success/failure of notifications
- goes to the invite page after user creation
- actually sends invites!
functional tests passing for onboarding invitations
cleanup for linitng
remove unreachable return
access the notifications service better
use link-to instead of an anchor with an action
failed user creations get caught, and bubble as errors
a slew of other cleanup stuff via jason
