Add an option to export BOSH_STEMCELL before running this scripts.
Add an option to export BOSH_STEMCELL before running this scripts.

* This allows to use this script to deploy to other BOSH directors
  (cf dev, provisioned by BBL or any other)

pivotal-cf/cf-rabbitmq-release,pivotal-cf/cf-rabbitmq-release,pivotal-cf/cf-rabbitmq-release,pivotal-cf/cf-rabbitmq-release