[libmediaart] Created tag 1.9.1

[Carlos Garnacho <carlosg src gnome org>]

The unsigned tag '1.9.1' was created.

Tagger: Carlos Garnacho <carlosg gnome org>
Date: Sun Mar 5 13:34:19 2017 +0100

    Release 1.9.1

Changes since the last tag '1.9.0':

Carlos Garnacho (3):
      extract: Initialize variable
      extract: Add introspection annotations to media_art_buffer_to_jpeg()
      Release 1.9.1

Jens Georg (3):
      extract: Don't print confusing random strerror
      extract: Allow empty artist in media_art_set
      extract: Align annotation with documentation

Martyn Russell (1):
      libmediaart: Fix _media_art_marshal*() errors when compiling

Michael Biebl (1):
      build: hide private symbols

Paweł Stankowski (1):
      build: Allow Qt4 or Qt5 to be forced

Yanko Kaneti (2):
      tests: Make mediarttest work as both installed and built test
      tests: No new temporary cache directories for subprocess tests