[gnome-sdk-images] Created branch gnome-3-28

From: Alexander Larsson <alexl src gnome org>
To: commits-list gnome org
Cc: release-team gnome org, alexl src gnome org, gnome-doc-list gnome org, gnome-i18n gnome org
Subject: [gnome-sdk-images] Created branch gnome-3-28
Date: Fri, 9 Mar 2018 13:13:20 +0000 (UTC)

The branch 'gnome-3-28' was created.

Summary of new commits:

  4492502... Update all packages to 3.28 pre-releases