[glib] (2 commits) ...Merge branch 'source-atomic-refcounting-only' into 'master'

From: Philip Withnall <pwithnall src gnome org>
To: commits-list gnome org
Cc:
Subject: [glib] (2 commits) ...Merge branch 'source-atomic-refcounting-only' into 'master'
Date: Thu, 30 May 2019 12:34:31 +0000 (UTC)

Summary of changes:

  0f056eb... Use atomic reference counting for GSource
  57a1d79... Merge branch 'source-atomic-refcounting-only' into 'master'