COOPR-583: Integrate coopr server with external authentication service.
Merge branch 'develop' into feature/auth-service-integration
COOPR-583: Updated COOPR run script for support 'security.enabled' server mode.
Merge branch 'develop' into feature/auth-service-integration

Conflicts:
	coopr-standalone/bin/coopr.sh
COOPR-583: Updated COOPR run script.
COOPR-583: Removed not needed line.
COOPR-583: Added default realm file for authentication and changed default pass in the run script.
COOPR-583: Fixed existing unit tests.
COOPR-583: Added unit test for testing auth service.
COOPR-583: Fixed auth service unit tests.
COOPR-583: Added README file with auth details.
COOPR-583: Fixed connection refused exception in the UTs.
COOPR-583: Try to set default port.
COOPR-583: Moved authentication related documentations to the coor-docs.
COOPR-583: Moved testing properties set up in the java, instead of config xml.
COOPR-583: Try to changed auth service test port.
Revert "COOPR-583: Try to changed auth service test port."

This reverts commit 79e39b6d8b6a78b3336a4d7dd1a56abffe46b5fc.
COOPR-583: Refactored Unit tests.
COOPR-583: Removed unused constant.
COOPR-583: Added util method to get free port for test auth server.