[gdk-pixbuf] Created tag 2.40.0

[Emmanuele Bassi <ebassi src gnome org>]

The signed tag '2.40.0' was created.

Tagger: Emmanuele Bassi <ebassi gnome org>
Date: 1570531519 +0100

    GdkPixbuf 2.40.0
    
    Changes since 2.38:
    
      - Allow creating a GdkPixbuf instance without any property [Federico Mena
        Quintero, #91]
      - Add gdk_pixbuf_init_modules() for applications with GdkPixbuf loader
        modules in a separate directory [Bastien Nocera, bgo#786035]
      - Add subproject fallback for dependencies [Nirbheek Chauhan]
      - Handle large XPM without crashing [Bastien Nocera, #95]
      - Use the appropriate gdk-pixbuf-query-loaders on install [Emmanuele
        Bassi, #126]
      - Disable deprecation warnings introduced by GLib 2.62
      - Escape GIF version in error messages [Robert Ancell]
      - Use the appropriate fallback for libpng on Windows [Chun-wei Fan]
      - Render GIF frames on demand [Robert Ancell, #101]

Changes since the last tag '2.39.2':

Emmanuele Bassi (2):
      Post-release version bump to 2.39.3
      Release gdk-pixbuf 2.40.0

Federico Mena Quintero (1):
      (#91): Have a STORAGE_UNINITIALIZED for construction with all-default properties