[gtkmm] Created tag 3.17.4

[Murray Cumming <murrayc src gnome org>]

The unsigned tag '3.17.4' was created.

Tagger: Murray Cumming <murrayc murrayc com>
Date: Tue Jun 30 13:45:45 2015 +0200

    3.17.4

Changes since the last tag '3.17.3':

Kjell Ahlstedt (2):
      Gtk::IconInfo, Widget: Deprecate API which is deprecated in gtk+
      Don't disable more deprecation warnings than necessary

Murray Cumming (8):
      Regenerate GDK .defs
      Regenerate gtk .defs.
      Regenerate *_docs.xml files.
      IconTheme: lookup_icon(), choose_icon(): Add default 0 for flags.
      Demo: IconTheme: Don't use deprecated builtin-icon API.
      Gdk::Window: Add get/set_passthrough().
      Assistant: Add get/set_page_has_padding().
      FontChooser: Add get/set_font_map().