Python2.3's NullTranslation class doesn't have all of the features of later python.  Update our DummyTranslation class to provide the missing features if they aren't available in the base clas.
Python2.3's NullTranslation class doesn't have all of the features of later
python.  Update our DummyTranslation class to provide the missing features
if they aren't available in the base clas.

fedora-infra/kitchen,fedora-infra/kitchen