[packagekit] Refresh button in update-viewer

[Richard Hughes]

On Wed, 2007-09-26 at 14:10 -0400, Ken VanDine wrote:
> I would prefer it be a "Check for Updates" button.  Which would go
> look for updates and re-populate the list.  I also still want a way to
> click on the icon in the notification tray and view the updates found
> on the last check without doing a new check.

I think conary is unique in that getting the update list is quite
complicated. Could we somehow do some client side caching in the backend
to make it quick?

Richard.