[packagekit] Add support for package size and file list in description call

[Richard Hughes]

On Mon, 2007-10-01 at 22:04 -0400, Robin Norwood wrote:
> However, I've mucked up something in pcon:
> 
> [rnorwood at solitude PackageKit]$ pkcon get description
> "libxml2-devel;2.6.30-1;i386;installed"

As you've changed the callback descriptor you need to do ./client/pkcon
get description "libxml2-devel;2.6.30-1;i386;installed" as the system
installed copy will be different.

> Also, I only added support to the yum and dummy backends, because I
> couldn't figure out the others.

That's fine - please commit and we can sort out any breakage today.
Cheers for doing this dude, it looks great. 

Richard.