Browbeat path in venv & Elastic in Rally venv
Browbeat path in venv & Elastic in Rally venv

Add Browbeat/lib path to the Python Path in each venv. Fix the Rally
venv to have Elasticsearch

Change-Id: Ie1b3bd935554c3a90a597231a173a6a9789cd552

jkilpatr/browbeat,jkilpatr/browbeat