Make 'nova ssh' automatically fall back to private address
Make 'nova ssh' automatically fall back to private address

If no public IP address is available automatically revert to the private address.

Change-Id: Iaf780fde77c4a1eae99c27be7e21841ca87d69dc

mat128/python-novaclient,CCI-MOC/python-novaclient,takeshineshiro/python-novaclient,mat128/python-novaclient,JioCloud/python-novaclient,Shihta/python-novaclient,Shihta/python-novaclient,guptaankita/python-novaclient,akash1808/python-novaclient,metacloud/python-novaclient,metacloud/python-novaclient,JioCloud/python-novaclient,takeshineshiro/python-novaclient,akash1808/python-novaclient,guptaankita/python-novaclient,CCI-MOC/python-novaclient