ENYO-1787: added -a option to listen to all adresses

* ENYO-1787: added -a option to listen to all addresses (HEAD, origin/ENYO-1787, ENYO-1787)

By default, ares server listens only to 127.0.0.1

Enyo-DCO-1.1-Signed-off-by: Dominique Dumont <dominique.dumont@hp.com>