Bug 338893

When using the export feature after editing a raw image, the default
directory to store the converted image is the last one used in the
editor. This means every time you are changing the album (resp.
directory) to edit an image you also have to manually change the
directory, where the exported image will be stored. I would prefer to
have an option in the editor settings, to always write the edited image
to a special directory relative to the actual album. e.g. when editing
imagexyz.NEF in Africa/raw the exported jpeg should be automatically
written to Africa/raw/converted/imagexyz.jpeg.
Of course such an option should be selectable in the DK settings. 

Reproducible: Always