Add job for publishing built javascript content

There are two different types of tarballs we want to publish, a source
tarball to npm, and a built tarball intended for deployment. We have a
job for dealing with tarballs to npm, but we're lacking a new-style job
for publishing built artifacts to tarballs.o.o.

Add one, and switch storyboard to using it.

Change-Id: I19607d14facb93d1f46ea68feba563badfbbb5a2

playbooks/javascript/content.yaml

@@ -0,0 +1,4 @@
+- hosts: all
+  roles:
+    - role: npm
+      npm_command: build

zuul.d/jobs.yaml

@@ -751,6 +751,14 @@
       - secret: afsdocs_secret
         name: afs
 
+- job:
+    name: publish-openstack-javascript-content
+    parent: publish-openstack-artifacts
+    description: |
+      Publish javascript content tarballs to tarballs.openstack.org
+    pre-run: playbooks/javascript/pre.yaml
+    run: playbooks/javascript/content.yaml
+
 - job:
     name: release-openstack-javascript
     parent: publish-openstack-artifacts

zuul.d/projects.yaml

@@ -2026,10 +2026,10 @@
               node_version: 4
     post:
       jobs:
-        - legacy-storyboard-webclient-js-release-branch
+        - publish-openstack-javascript-content
     release:
       jobs:
-        - legacy-storyboard-webclient-js-release-master
+        - publish-openstack-javascript-content
     experimental:
       jobs:
         - legacy-storyboard-js-integration-ubuntu-trusty: