[Shotwell] Shotwell 0.29.3

[Jens Georg <mail jensge org>]

A new unstable release of Shotwell!

Notable changes:
 * Moves extended information from extra window into sidebar at the 
right
 * Face detection feature optionally available on master again

News
====
  * Fix Slideshow settings dialog
  * Re-merge faces branch to master
  * Introduce flatpak infrastructure
  * Fix OAuth2 token fetching from Google login
  * Move extended properties into a sidebar


Bugs fixed in this release:
 - https://bugzilla.gnome.org/show_bug.cgi?id=716192
 - https://bugzilla.gnome.org/show_bug.cgi?id=716704
 - https://bugzilla.gnome.org/show_bug.cgi?id=772339
 - https://bugzilla.gnome.org/show_bug.cgi?id=796370
 - https://gitlab.gnome.org/GNOME/shotwell/issues/10
 - https://gitlab.gnome.org/GNOME/shotwell/issues/12

All contributors to this release:
 - Jens Georg <mail jensge org>
 - Ricardo Fantin da Costa <ricardofantin gmail com>
 - Piotr Drąg <piotrdrag gmail com>
 - Yi-Jyun Pan <pan93412 gmail com>
 - Rafael Fontenelle <rafaelff gnome org>
 - Claude Paroz <claude 2xlibre net>

Added/updated translations
 - fr, courtesy of arverne73
 - pl, courtesy of Piotr Drąg
 - pt_BR, courtesy of Rafael Fontenelle
 - tr, courtesy of Emin Tufan Çetin
 - zh_TW, courtesy of pan93412

Shotwell 0.29.3 is available for download at

https://download.gnome.org/sources/shotwell/0.29/shotwell-0.29.3.tar.xz