[gtkmm] Created tag 3.17.90

[Murray Cumming <murrayc src gnome org>]

The unsigned tag '3.17.90' was created.

Tagger: Murray Cumming <murrayc murrayc com>
Date: Tue Sep 15 12:00:28 2015 +0200

    3.17.90

Changes since the last tag '3.17.80':

Chun-wei Fan (5):
      MSVC Builds: Support Visual Studio 2013 (and later) Only
      MSVC Builds: Speed Up Builds and Improve Debugging Experience
      MSVC Builds: Link Also to gio-2.0.lib
      MSVC Builds: Fix gtkmm3-demo Build
      MSVC Builds: Force "install" After Builds

Murray Cumming (14):
      LevelBar: Add set_orientation().
      Regenerate gdk .defs
      Regenerate gtk .defs.
      Regenerate gdk docs.xml.
      Regenerate gtk docs.xml.
      Gdk::Window: Ignore an internals function.
      Entry: Add grab_focus_without_selecting().
      Paned: Add get/set_wide_handle() and property.
      PaperSize: Add is_ipp().
      Overlay: Add new methods.
      Overlay: Add child properties.
      Notebook: Add detach_tab().
      Window: Add fullscreen_on_monitor().
      3.17.90