Release 0.6.1
Release 0.6.1

Signed-off-by: David Scott <63c9eb0ea83039690fefa11afe17873ba8278a56@eu.citrix.com>

thomassa/vhd-tool,euanh/vhd-tool,euanh/vhd-tool,djs55/vhd-tool,simonjbeaumont/vhd-tool,djs55/vhd-tool