Token handling is using a dbus value, not a string

[rcritten]

There are a few places where the token is requested over DBus like:

token = request.prop_if.Get(certmonger.DBUS_CM_REQUEST_IF, 'key-token')

Or when looping through requests:

token = request.get('key-token')

The value looks like: dbus.String('NSS Certificate DB', variant_level=1)