Rework handling of bus names in ravel.Connection: instead of caller having to keep refs to Connection.BusName objects, there are now request/release_name calls similar to those in dbussy.Connection. Also provide callbacks to notify acquisition/loss of bus names.
Rework handling of bus names in ravel.Connection: instead of caller
having to keep refs to Connection.BusName objects, there are now
request/release_name calls similar to those in dbussy.Connection. Also
provide callbacks to notify acquisition/loss of bus names.

ldo/dbussy