[DO NOT MERGE] Initial commit of refactor. Still contains old code.

There is no true/false value for configuring mongo replica sets with openshift.sh...  In order to do this, you need to run openshift.sh with the configure_datastore_add_replications action on the mongo primary host after mongo has been configured.

It should be safe to do this after the configure_openshift action has been run on the relevant mongo hosts.