Clean up the rollback menu a bit by only displaying the last 5 entries by default.  Also added command-line options so that the user can alternatively specify an exact number of entries to be shown or just to show all of the entries.
Clean up the rollback menu a bit by only displaying the last 5 entries by default.  Also added command-line options so that the user can alternatively specify an exact number of entries to be shown or just to show all of the entries.

ilanschnell/ironpkg,ilanschnell/ironpkg,jwiggins/keyenst,jwiggins/keyenst