From IRC, just now:
[19:01] I'm also not finding any screen in 1.4 to edit permissions -- having to add roles directly in psql
In 1.4, the roles are managed in the employee screen as a tab. This is a change from 1.3.
Note there is likely to be a group manager add-on (merged in in 1.5) available shortly after 1.4's release also.