CLOUDIFY-2041 read riemann pid and template using environment variables
CLOUDIFY-2041 fixed indentation
CLOUDIFY-2041 fixed method signature
CLOUDIFY-2041 fixed config template read from file
Merge pull request #2 from CloudifySource/feature/CLOUDIFY-2041-riemann-in-bootstrap-script

CLOUDIFY-2041 read riemann pid and configuration using environment variables.