[gnome-characters] Created tag v3.28.2

[Daiki Ueno <dueno src gnome org>]

The signed tag 'v3.28.2' was created.

Tagger: Daiki Ueno <dueno src gnome org>
Date: 1525676273 +0200

    Release 3.28.2

Changes since the last tag 'v3.28.0':

Bastien Nocera (1):
      libgc: Fix crasher with some GCC configurations

Daiki Ueno (2):
      libgc: Suppress compiler warning
      Release 3.28.2

Daniel Șerbănescu (1):
      Update Romanian translation

Dz Chen (1):
      Update Chinese (China) translation

Piotr Drąg (1):
      window: Update copyright year in the about dialog

Rafael Fontenelle (1):
      Update Brazilian Portuguese translation