[gnome-session] Created tag 3.21.90

[Ray Strode <halfline src gnome org>]

The unsigned tag '3.21.90' was created.

Tagger: Ray Strode <rstrode redhat com>
Date: Thu Aug 18 14:37:19 2016 -0400

    3.21.90
    
    * Do not report errors in the absence of dbus-update-activation-environment
    * Support reading kernel gnome.fallback variable on FreeBSD
    * Allow IM environment variables to be overridden
    * Translation updates

Changes since the last tag '3.21.4':

Anders Jonsson (1):
      Updated Swedish translation

Aurimas Černius (1):
      Updated Lithuanian translation

Dominique Leuenberger (1):
      Do not report errors in absence of dbus-update-activation-environment

Dušan Kazik (1):
      Updated Slovak translation

Fabio Tomat (1):
      Updated Friulian translation

Gunnar Hjalmarsson (1):
      main: Don't override IM variables

Jiri Grönroos (1):
      Updated Finnish translation

Ray Strode (2):
      NEWS: update for release
      configure: bump to 3.21.90

Ting-Wei Lan (1):
      gl-helper: Support reading gnome.fallback value from FreeBSD kenv

વિશાલ ભલાણી (1):
      Updated Gujarati translation