Updated openstack/openstack
Project: openstack/taskflow  b4e4e214cb69a3f2b9d90c287dcc2dd521a7f425

Remove usage of listener base postfix

The base prefix added on to the listener classes is
not very useful and is already understood that these are
base classes by documentation or abc.ABCMeta usage so
we don't need to specifically name these classes bases
to also show that they are a base class (useless duplicate
information).

So in this change we deprecate the 'ListenerBase' and the
'LoggingBase' and rename these classes to more appropriate
names.

Change-Id: Iaeaeaf698c23d71720ef7b62c8781996829e192a