[gnome-system-monitor] Created tag 3.17.90

[Robert Roth <robertroth src gnome org>]

The signed tag '3.17.90' was created.

Tagger: Robert Roth <robert roth off gmail com>
Date: Mon Aug 17 22:59:59 2015 +0300

    Tagged release 3.17.90

Changes since the last tag '3.17.4':

Alexandre Franke (1):
      Updated French translation

Benoît Dejean (3):
      Post release version bump.
      Add a smart CXXFLAGS / std=c++11 switch.     Code from glom and murrayc 
http://www.murrayc.com/permalink/2015/07/31/gtkmm-now-uses-c11/ .
      We don't need anymore the CFLAGS gnu89.     Compilers are modern enough.

Dušan Kazik (1):
      Updated Slovak translation

Robert Roth (1):
      Prepare release 3.17.90

Ting-Wei Lan (1):
      build: Replace -std=c++98 with -std=c++11