Adds the ability to start/stop the Sentry Service to our local test environment and
load the sentry-site.xml configs. Since the existing Sentry startup scripts don't work
I wrote a simple wrapper to handle service startup.
Change-Id: I1b77a2e50e51e6e6eae58cfed4d5d7c403dbc0b4
Reviewed-on: http://gerrit.ent.cloudera.com:8080/2540
Tested-by: jenkins
Reviewed-by: Lenni Kuff <lskuff@cloudera.com>
