[gdk-pixbuf] Created tag 2.38.0

[Emmanuele Bassi <ebassi src gnome org>]

The signed tag '2.38.0' was created.

Tagger: Emmanuele Bassi <ebassi gnome org>
Date: 1535985787 +0100

    2.38.0 (stable)
    
     - Documentation fixes

Changes since the last tag '2.37.92':

Emmanuele Bassi (9):
      docs: Link to the dependencies
      docs: Style fixes for the README
      Remove gdk-pixbuf.types
      docs: Fix the link to the GDK reference
      Add missing 2.38 versioning macros
      docs: Re-organise the API reference index
      docs: Add missing symbol index for 2.38
      Use the appropriate version for unavailable annotations
      Release GdkPixbuf 2.38.0