Sébastien Blin authored Apr 13, 2018 and Philippe Gorley committed Apr 13, 2018

Change base uri to be able to load local files. Load incoming and
outgoing images from data transfer. If an image cannot be loaded,
it will show the basic file interaction box.

This behavior is disabled if the user hide images from settings.

Change-Id: I6b7ad88fdc6cdde9d98d24137c494e1ae94693d0
Reviewed-by: Philippe Gorley <philippe.gorley@savoirfairelinux.com>