[gnome-font-viewer] Created tag 3.20.0

[Cosimo Cecchi <cosimoc src gnome org>]

The unsigned tag '3.20.0' was created.

Tagger: Cosimo Cecchi <cosimoc gnome org>
Date: Tue Mar 29 08:21:16 2016 -0700

    Release 3.20.0

Changes since the last tag '3.16.2':

Arash Mousavi (1):
      Update Persian translations

Cosimo Cecchi (8):
      Remove unused variables
      Add missing include
      font-model: avoid a runtime warning
      font-thumbnailer: fix GCC warning
      Fix a crash when no sample string can be constructed
      font-widget: fix support for scale factor
      build: work around intltool bug with new automake
      release: prepare for 3.20.0

Cédric Valmary (2):
      Updated Occitan translation
      Updated Occitan translation     (cherry picked from commit 7f3b23eca91f7d03657acf63e13585d881ad4e8a)

Fabio Tomat (1):
      Updated Friulian translation

GNOME Translation Robot (1):
      Updated Scottish Gaelic translation

Pedro Albuquerque (1):
      Updated Portuguese translation

Peng Wu (6):
      sushi-font-loader: Add face_index argument
      font-utils: Add face_index argument
      sushi-font-widget: Add face_index argument
      font-thumbnailer: Extract face index from URI
      font-model: Support TTC fonts
      font-view: Support TTC fonts

Piotr Drąg (2):
      Updated Polish translation
      Updated Polish translation

Richard Hughes (3):
      Update the AppData file to spec version 0.7+
      Add a missing tag to the AppData file
      AppData: Mark as unremovable in GNOME Software

Rūdolfs Mazurs (1):
      Update Latvian translation