[Vimoutliner] VO-based todo manager: tkdo 0.4.1

[Scott Scriven]

It's been a while.  This is the latest:

    http://toykeeper.net/programs/tkdo/files/tkdo-0.4.1.tar.gz

I've been busy, so this update has only some small updates.
What has changed since 0.4:

  General:
    + Made max and default importance configurable.
    * Fixed bug: Not-yet-due tasks in a 'next' group hid their successors.
  CLI:
    * Made 'cal' command show due dates, sort by date, and show sleeping tasks.
  GUI:
    + Added 'add task' functions.


-- Scott