[shotwell] Created tag shotwell-0.29.91

[Jens Georg <jensgeorg src gnome org>]

The signed tag 'shotwell-0.29.91' was created.

Tagger: Jens Georg <mail jensge org>
Date: 1534435312 +0200

    Release Shotwell 0.29.91

Changes since the last tag 'shotwell-0.29.4':

Daniel Mustieles (1):
      Updated Spanish translation

Emin Tufan Çetin (1):
      Update Turkish translation

Jens Georg (4):
      flatpak: Add unstable flatpakref file
      Merge branch 'master' into 'master'
      build: Remove facebook publisher from default list
      Prepare 0.29.91

Jiri Grönroos (1):
      Update Finnish translation

NarendraMA (1):
      Changed stderr.printf() to warning()