Set assumed AppArmor label for com.lomiri.OnlineAccountsUi
The AppArmor policygroup "accounts" requires the peer to run unconfined, so if com.lomiri.OnlineAccountsUi is not running already activation will fail unless AssumedAppArmor=unconfined is present in the service file telling dbus-daemon that the service will run unconfined if activated.
This fixes #26 (closed).