metadig-engine unable to detect compute environment

[gothub]

metadig-engine can run in several different environments: standalone from MDQEngine class; standaone using RabbitMQ; in a Java servlet. The engine needs to detect when it is in a servlet engine so that it can acquire config info that is available to the servlet, when in standalone (for debugging) it reads config info from a different location.

The mechanism to detect the environment is not working, so when run in standalone mode for debugging, it tries to read config info from the wrong location and fails.

[gothub]

Fixed in commit b133394