[gtkmm] Created tag 3.22.1

[Murray Cumming <murrayc src gnome org>]

The unsigned tag '3.22.1' was created.

Tagger: Murray Cumming <murrayc murrayc com>
Date: Fri Jun 23 11:36:42 2017 +0200

    3.22.1

Changes since the last tag '3.22.0':

Chun-wei Fan (1):
      Visual Studio builds: Fix projects

Daniel Boles (15):
      label.ccg: update align args to match doc fix @ hg
      FileChooserDialog: Drop unneeded explicit on ctor
      FileChooserDialog: Use static_cast, not C cast
      TreeModel: Improve docs of foreach*() functions
      CellLayout: Improve docs of get_first_cell() funcs
      Box: Fix comments on constructor
      TreeView: Remove an obsolete comment
      gtk-demo: Don’t remove_page() with invalid index
      gtk-demo/demowindow: Use auto
      gtk-demo/demowindow: Use size_t to index in arrays
      gtk-demo/demowindow: Order #includes correctly
      gtk-demo/example_headerbar: Remove an old comment
      gtk-demo: Use #include <blah> for system headers
      gtk-demo/demowindow: Remove unnecessary null check
      convert_gtk.m4: Remove redundant conversions

Kjell Ahlstedt (6):
      GtkMainConnectionNode: Remove unused method
      Deprecate API which is deprecated in gtk+-3
      Gtk::Widget: Deprecate is_composited() and signal_composited_changed()
      Gtk::Frame: Fix the documentation of set_label_align()
      Gdk::Window: Deprecate process[_all]_updates()
      Gtk::FileChooserDialog: Deprecate ctors with backend parameter

Murray Cumming (2):
      Gdk::Pixbuf: Add commented-out get_pixels(length&) with TODO.
      3.22.1

djb (2):
      Label(): don't use misleading align argument names
      Label: improve h/valign constructor doc comment