agent: Enable IPv6 connectivity for KVM Agent to Management Server
agent: Enable IPv6 connectivity for KVM Agent to Management Server

IPv4 is still preferred, so if the hostname of the Management Server
returns a A and AAAA-record the Agent will still connect to the
server over IPv4.

This situation will however allow to use a hostname which only has
a AAAA-record. In that case the Agent will connect to the Management
Server over IPv6.

GabrielBrascher/cloudstack,GabrielBrascher/cloudstack,resmo/cloudstack,DaanHoogland/cloudstack,jcshen007/cloudstack,wido/cloudstack,jcshen007/cloudstack,resmo/cloudstack,GabrielBrascher/cloudstack,wido/cloudstack,GabrielBrascher/cloudstack,jcshen007/cloudstack,jcshen007/cloudstack,wido/cloudstack,DaanHoogland/cloudstack,GabrielBrascher/cloudstack,wido/cloudstack,DaanHoogland/cloudstack,resmo/cloudstack,wido/cloudstack,resmo/cloudstack,DaanHoogland/cloudstack,DaanHoogland/cloudstack,DaanHoogland/cloudstack,wido/cloudstack,GabrielBrascher/cloudstack,wido/cloudstack,DaanHoogland/cloudstack,resmo/cloudstack,jcshen007/cloudstack,GabrielBrascher/cloudstack,jcshen007/cloudstack,resmo/cloudstack,resmo/cloudstack,jcshen007/cloudstack