libsane-hpaio: Thanks for packaging libsane-hpaio (Jessie backports)!

[Brian Potkin <claremont102@gmail.com>]

brian@desktop:~$ scanimage -L                                                                                   
device `hpaio:/net/envy_4500_series?ip=192.168.7.235&queue=false' is a Hewlett-Packard envy_4500_series all-in-one

Without backports  I'd not be scanning over the network from my Envy 4500.

Many thanks,

Brian.