These functions do a number of things, specifically they handles the
DevStack USE_PYTHON3 switch transparently so we can run both major
Python versions.
The new setup.cfg files are only used by setup_*() right now, making
the switch to use pbr is beyond what I want to do here.
Change-Id: Ib9753119235b1ce23030a2b3de0169ed6f8819e0
Signed-off-by: Dean Troyer <dtroyer@gmail.com>
91fb95eae5