[sushi] Created tag 3.31.2

[Cosimo Cecchi <cosimoc src gnome org>]

The unsigned tag '3.31.2' was created.

Tagger: Cosimo Cecchi <cosimoc gnome org>
Date: 1542346207 +0000

    Release 3.31.2

Changes since the last tag '3.30.0':

Cosimo Cecchi (8):
      Sync sushi-font-widget/sushi-font-loader
      build: bump version to 3.31.0
      meson: remove unused defines
      Don't generate/include unused config.h
      build: remove autotools
      flatpak: update for meson port
      Merge branch 'wjt/remove-more-autotools' into 'master'
      release: prepare for 3.31.2

Martin Blanchard (1):
      Replace usage of deprecated g_type_class_add_private()

Piotr Drąg (1):
      Update POTFILES.in

Rasmus Thomsen (5):
      build: add meson
      build: invoke add_project_arguments once with all arguments
      build: service file name has changed
      build: remove redundant install parameter, add glib preset parameter
      build: style fixes

Will Thompson (1):
      Remove two more Autotools-related files