no more username, only email

Signed-off-by: Alexander Skjolden <alex@plastboks.net>
comments #12 - create new user

Signed-off-by: Alexander Skjolden <alex@plastboks.net>
comments #12 - edit users

Signed-off-by: Alexander Skjolden <alex@plastboks.net>
Merge branch 'users' into develop