Fix python 3 pep8 errors for print

The new auto-pulled requirements files exposed
python 3 compat issues in a number of modules.
We added these to tox.ini ignore temporarily,
this change updates the print routines in bin/cinder
and removes the debug cruft that was in the unit tests.

Will update requirements and test-requirements
appropriately in a follow up patch.

Change-Id: I76ea24f4dc1f61c4f8a1d202b0554c90daf2c9cc
Merge "Fix python 3 pep8 errors for print"