[packagekit] Improved pkt tool

[Tom Parker]

Ken VanDine wrote:
> Tom, are you willing to start creating a python API and make pkt.py use that?

Yes. I'll probably try and stick to the dbus api names for the 
functions, if only to avoid having to keep track of two different names 
for functions.

Richard: can I create a "python" top-level folder and dump the python 
API in there along with a revised version of pkt that uses it?

Tom