Updated to have sensible default values for running healthchecks on the release staging server.
Updated to have sensible default values for running healthchecks on the release staging server.

Ensembl/ensj-healthcheck,thomasmaurel/ensj-healthcheck,Ensembl/ensj-healthcheck,Ensembl/ensj-healthcheck,thomasmaurel/ensj-healthcheck,thomasmaurel/ensj-healthcheck,Ensembl/ensj-healthcheck,thomasmaurel/ensj-healthcheck