[packagekit] Session idle time, frequency_refresh_cache and frequency_get_updates

[Patryk Zawadzki]

Two issues here:

1) Session idle time signaling has been pulled from gnome-screensaver
so currently PK will never refresh the cache (claiming the session is
still active when it's been showing the screensaver for three days in
a row).

2) frequency_refresh_cache and frequency_get_updates seem to be doing
the same thing. At least judging from their descriptions. The first
one can only be set to "daily" when I really want to use "hourly" for
updating the repository, the second can be set to "hourly" but it
won't update the cache so it always returns the same results it did at
last cache refresh. Does it really make any sense to update the cache
once per day then query it 24 times looking for changes?

-- 
Patryk Zawadzki