Pycadf pulls in an older version of oslo.messaging, as
does most of the other packages. Since 1.3.0 is released
and we are building it allow the dependency resolver/adjuster
to correctly adjust those packages to use the specified
version instead of the one found in the requirements files.
Change-Id: I59b607839a8b65274a08a4903cafb98ab8900870
38d0beb73e