Updated openstack/openstack
Project: openstack/nova  2fc7f5f01d32c870a04019636108157589e548a7

Move JSON filter unit tests into own file

Separates JSON filter unit tests from test_host_filters.py and refactors
the test methods to remove some cruft.

Change-Id: I31b9b409f4bbc17074067f42ea9da1418d963086