[Shotwell] element spacing, tags and events

[Jim Nelson]

>
> Renaming the photo is not quite the same thing. There is also a
> semantic problem here. I don't think we should confuse the terms 'file
> name' with  'photo title'. Ideally we need two extra columns in
> PhotoTable, photo_title and photo_description.
>
>
To jump in here, PhotoTable currently has a "title" column for exactly
that.  If it's empty, the filename is displayed instead.  We will need a
description field, however.

-- Jim