--------------------------------------------------------------------------------
Add kludge to get and display Local package Changelogs.  (dnf is unable to
   collect them from installed packages, but can display them if the installed
   package also is still available from a repo.)
Display advisories (e.g. FEDORA-2019-${hex} from updateinfo.xml.xz)
--------------------------------------------------------------------------------
After doing a transaction, sometimes I'll see odd items in the displayed
   list: items that obviously don't match the filter, and they go away if you
   change the filter and change it back. (Mostly harmless, but annoying and
   clearly some sort of bug)
--------------------------------------------------------------------------------
Add ability to mark packages as excluded, easily.
Conditional packages in groups not supported yet, because I 
   don't really understand them
--------------------------------------------------------------------------------
Under Describe dialog, maybe add functionality like "yum whatprovides" and/or
   "yum deplist"
If yum fails on a particular repo, pop up a dialog to allow the user to
   disable it for the current session (so the user can do *something*)
Add automatic mirror creation support
Ability to install package other than the latest
Add ability to configure any reasonable package field as a table column
   (where reasonable means "single line")
Add "Recently Installed" as another pseudo-filter.  Maybe the ability to
   add install date as a column and to sort by that is sufficient
Jeffh wants to be able to abort the initialize and do something.  I don't
   know what!  Nor how I could possibly implement that.
Allow cut & paste selection from table widgets (if qt can do it)
