Security: Require config file to be mode 0600
Security: Require config file to be mode 0600

Require the config file to have a permission of 0600 if it contains a
password.  This way it is only readable/writeable by the user

Change-Id: I0c38a3c41125422b981ed3f799870906a0700180

openstack/gertty,aspiers/gertty,stackforge/gertty