Authentication form: pass the email with the “authenticated” event
assert
Client list
Client List form
Client list UI
Authentication form: check session: pass the email with the event

This is an important change, but I don’t have a test for it because it
is now impossible to test. Will refactor soon and write tests.
Client list form: disable the save button while the data is being saved
mv ClientList ClientListService
Refactoring: mv email-address email
Do not remember me

Firebase remembers by default.

See https://github.com/firebase/firebase-simple-login/issues/55
Web UI: css/
Web UI: app/
User service: promisified logout
LogoutButton: refactoring and test
Web UI: input focuser

A thingy to focus the first input on the tab when switching to another
tab.
Web UI: view switcher: add “authenticated” class to the body
Client list form: do not reenable submit button after submit
Email updater
Main: refactoring and UI tweaks