[packagekit] I've broken all your nice backend code...

[Daniel Nicoletti]

> Yup, I don't think it's any secret that some backends are well
> supported (aptcc, yum) and others not so (opkg, pisi) -- the general
> rule of thumb is to remove the backends if they've been broken for
> more than about 6 months.
>
> I'm certainly not going to block 0.8.1 on a few backends being broken.
> packagekit-qt is another story tho..
Also the port is quite easy, I've just did the aptcc changes and it took only
less than 5 min...