Merge remote-tracking branch 'origin/148-esgf-workflow'

* origin/148-esgf-workflow:
  Do not set time on workflow if null
Merge remote-tracking branch 'origin/150-update-setup-runtime'

* origin/150-update-setup-runtime:
  Setup LD_LIBRARY_PATH in setup-runtime.sh
Merge remote-tracking branch 'origin/149-fix-user-group-naming'

* origin/149-fix-user-group-naming:
  Rename GEOJS_USER => GEOWEB_USER
Merge remote-tracking branch 'origin/151-local-js-css'

* origin/151-local-js-css:
  Add missing images
  Update CSS and JS paths to local deployment dir
  Add copy of jquery-ui.css to repository
Initial work on adding hover effects to workflow editor
Add a test page to test workflows quickly
Fix workflow test style
Finish adding hover effects
Merge branch '156-add-hover-effects-workflow' into next