Backport of https://issues.jboss.org/browse/AS7-4386 Add the ability to
set a global default distinct name
Backport of https://issues.jboss.org/browse/AS7-4834 Race condition in
RemoteOutboundConnectionService
Backport of https://issues.jboss.org/browse/AS7-5125 The
default-distinct-name can not be set to a "" value