[Shotwell] Shotwell 0.28.4

[Jens Georg <mail jensge org>]

A new maintenance release of Shotwell is available.

Changes since 0.28.3:

Shotwell 0.28.4 - 14 Jul 2018
  * Fix slideshow settings dialog
  * Fix
Google login sequence
  * Fix MTP device unmounting
  * Work-around issue
where PTP cameras would not be recognized anymore

Bugs fixed in this release:
 - https://bugzilla.gnome.org/show_bug.cgi?id=796370
 - https://gitlab.gnome.org/GNOME/shotwell/issues/12

All contributors to this release:
 - Jens Georg <mail jensge org>
 - Piotr Drąg <piotrdrag gmail com>

Added/updated translations
 - tr, courtesy of Emin Tufan Çetin

Shotwell 0.28.4 is available for download at

https://download.gnome.org/sources/shotwell/0.28/shotwell-0.28.4.tar.xz

Or for Ubuntu >= 16.04 at the stable PPA soon
https://launchpad.net/~yg-jensge/+archive/ubuntu/shotwell