Add documentation jobs for taskflow

Since taskflow is now part of oslo, we need to build developer
documentation and publish it on doc.openstack.org.

Partial-bug: #1279951
Change-Id: Ia3fdc6acd380a3ddfd16d44f4c8663e3b61c35ad

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

@@ -1721,9 +1721,11 @@
     github-org: openstack
     node: bare-precise
     tarball-site: tarballs.openstack.org
+    doc-publisher-site: docs.openstack.org
 
     jobs:
       - python-jobs
+      - openstack-publish-jobs
       - pypi-jobs
       - gate-{name}-tox-{envlist}:
           envlist: py26-sa7-mysql

modules/openstack_project/files/zuul/layout.yaml

@@ -1023,23 +1023,17 @@ projects:
       - swift-merge-release-tags
 
   - name: openstack/taskflow
+    template:
+      - name: python-jobs
+      - name: openstack-server-publish-jobs
     check:
-      - gate-taskflow-pep8
-      - gate-taskflow-python26
-      - gate-taskflow-python27
       - gate-taskflow-python33
       - gate-taskflow-tox-py26-sa7-mysql
       - gate-taskflow-tox-py27-sa8-mysql
     gate:
-      - gate-taskflow-pep8
-      - gate-taskflow-python26
-      - gate-taskflow-python27
       - gate-taskflow-python33
       - gate-taskflow-tox-py26-sa7-mysql
       - gate-taskflow-tox-py27-sa8-mysql
-    post:
-      - taskflow-coverage
-      - taskflow-branch-tarball
     pre-release:
       - taskflow-tarball
     release: