Allows quark to use more than one NVP controller

RM10638

Updates quark to use more than one NVP controller. Different mechanisms
are provided for initial and subsequent controller selection through
configuration variables.
Removes unused repoze package

We haven't used repoze in months inside of Quark. This patch removes the
line from requirements.txt
Replace usage of gettextutils with oslo.i8ln

From https://github.com/openstack/neutron/commit/3f44c9e27874511f05e2338c10e836361776ed88
and https://github.com/openstack/neutron/commit/dac6a0c79e56a8b724dcfbf2c3058fbbc79cc7b0

RM10742
Merge pull request #286 from jmeridth/fix_upstream_changes

Fix upstream neutron changes, items removed from neutron.common
Merge pull request #285 from Cerberus98/rm10638

Allows quark to use more than one NVP controller
Merge pull request #287 from Cerberus98/unused_repoze

Removes unused repoze package