resolve CA-655: link from eCAS back to EDRN public portal. The specific portal url to use (e.g.: edrn.jpl.nasa.gov/portal, tumor.jpl.nasa.gov/portal, etc.) can be specified by the  configuration setting edrn_public_portal_url in application config.ini file.
resolve CA-655: link from eCAS back to EDRN public portal. The specific portal url to use
(e.g.: edrn.jpl.nasa.gov/portal, tumor.jpl.nasa.gov/portal, etc.) can be specified by the 
configuration setting edrn_public_portal_url in application config.ini file.

EDRN/ecas-frontend-browser,EDRN/ecas-frontend-browser