Version 11: December 12, 2018 05:15:37 PM

Change speech inclusion criteria to one non-blank field (#17)

The original intent was to only exclude a speech from the printed agenda when _all_ of its fields (name, title, project/duration) are blank, but the logic committed needs only _one_ blank field. This makes it too easy to unintentionally exclude a speech by forgetting, for example, to input its title.