Add gerritx project infrastructure.

Add all of the support files needed for this to be a project.
Also, fix pep8 and pyflakes errors.
diff --git a/.gitreview b/.gitreview
new file mode 100644
index 0000000..9e9a01d
--- /dev/null
+++ b/.gitreview
@@ -0,0 +1,4 @@
+[gerrit]
+host=review.openstack.org
+port=29418
+project=openstack-ci/gerritx.git