Add docs job for os-cloud-config

Since os-cloud-config includes documentation, we should take the
first step of improving it and putting up in an easily accessible
place. To that end, add a os-cloud-config-docs job to build and
publish the docs.

Change-Id: Ib008e5d6f10725196dcc5747c6f1eca5ba7fff7f
Closes-Bug: #1317749

modules/openstack_project/files/jenkins_job_builder/config/projects.yaml

@@ -1513,10 +1513,12 @@
     github-org: openstack
     node: bare-precise
     tarball-site: tarballs.openstack.org
+    doc-publisher-site: docs.openstack.org
 
     jobs:
       - python-jobs
       - pypi-jobs
+      - openstack-publish-jobs
 
 - project:
     name: os-collect-config

modules/openstack_project/files/zuul/layout.yaml

@@ -1825,7 +1825,6 @@ projects:
           - post-mirror-python27
           - post-mirror-python33
 
-#TODO: add docs
   - name: openstack/os-cloud-config
     template:
       - name: check-requirements
@@ -1845,6 +1844,7 @@ projects:
     experimental-tripleo:
       - check-tripleo-ironic-undercloud-precise
     post:
+      - os-cloud-config-docs
       - os-cloud-config-coverage
       - os-cloud-config-branch-tarball
     pre-release: