Updated openstack/openstack
Project: openstack/neutron  b5d6c5e10650826d597c3e3fc18e5595f2b844ab

Replace XML with JSON for N1kv REST calls

Currently the cisco n1kv plugin handles XML responses from VSM.
This change will replace the httplib2 with requests library and handle
JSON responses from the VSM.

Implements: blueprint cisco-n1kv-json-support

Change-Id: Icd32a6a2ab815ccd24ad86371e927c132e204413