3.19.5:

Gtk:
* Button: Deprecate get/set_focus_on_click() and property.
  (Kjell Ahlstedt)
* ComboBox: Deprecate get/set_focus_on_click() and property.
  (Kjell Ahlstedt)
* FileChooserButotn: Deprecate set/get_focus_on_click() and property.
  (Kjell Ahlstedt)
* Widget:  Add set/get/property_focus_on_click(),
  set/unset/get_font_options(), set/get_font_map(), queue_allocate(),
  get_allocated_size().
  (Kjell Ahlstedt)
* Window: Deprecate resize_to_geometry().
  (Kjell Ahlstedt)

Gdk:
* Screen::get_font_options(): Really take a copy.
  (Kjell Ahlstedt)

Build:
* Remove #ifdefs with obsolete GLIBMM_*_ENABLED constants
 (Kjell Ahlstedt)
* Demos, tests: Use nullptr instead of 0.
  (Kjell Ahlstedt)
* Gtk: Use nullptr instead of 0
  (Kjell Ahlstedt)
* Gdk: Use nullptr instead of 0
  (Kjell Ahlstedt)
* Menushell, Widget: Use noexcept on the destructor implementation.
  To match the generated declaration.
  (Emeric Maschino) Bug #759263, Bug #759262