Release notes for 0.3.0 release
Release notes for 0.3.0 release

Change-Id: I6f025b745378613eb674e13dd503e57d049a3e50

derekchiang/python-openstackclient,openstack/python-openstackclient,dtroyer/python-openstackclient,BjoernT/python-openstackclient,openstack/python-openstackclient,metacloud/python-openstackclient,BjoernT/python-openstackclient,varunarya10/python-openstackclient,metacloud/python-openstackclient,redhat-openstack/python-openstackclient,dtroyer/python-openstackclient,derekchiang/python-openstackclient,redhat-openstack/python-openstackclient,varunarya10/python-openstackclient