Publish the browser release on a CDN

We can start by publishing the release on our own nexus.
Already done for 1.0.0 release here: https://maven.nuxeo.org/nexus/content/groups/public/org/nuxeo/js/nuxeo/1.0.0/nuxeo-1.0.0.js

See later if https://cdnjs.com could be a good match.