-overworked login and logout
-new directive 'appOsPerms'
(former os-perms)
-appOsPerms compares with groups in Operator
-login observes operator for user-information
(also serves as example on how to user observables and subjects)
-operator observes datastore for groups
(so the operators knows it's groups by creation or directly after an
autoupdate)
- Since MaterialUI does not have an equivalent to bootstrap alterts,
the toast service and alert service are marked as deprecated for now.
The functionality has been replaced with the snackbar.
