Spsark ui refresh

apache-spark

#1

unfortunately spark ui does not refresh…
so
easy fix is to use
http://www.hammerlab.org/2015/07/25/spree-58-a-live-updating-web-ui-for-spark/
a comple one to check (maybe) as pet project for @itversity
is
http://www.hammerlab.org/2015/07/25/spree-58-a-live-updating-web-ui-for-spark/