[niepce] (22 commits) ...Merge branch 'action-rework'

[Hubert Figuière <hub src gnome org>]

Summary of changes:

  a916521... Use AppFrame for Gtk::ApplicationWindow
  9755bf2... Move to the new Gtk action framework.
  b702d00... Use the new actions in the modules.
  d4bad17... More C++11
  5569d01... Provide an interface to get the module menu. Add back the m
  0505d57... Remove Gtk::UIManager
  f4c1820... [cw] Move the new Gio::Action and such.
  c7d9ecc... [mg] Update for the new Gio::Action framework.
  74ed3c4... Refactor Preferences to be in the app section of the action
  7c254b5... Move Image menu to the shell menu button. Placeholder for t
  6a902b9... Last action conversions for the moduleshell.
  fa1efbb... Added DBG_DTOR facility
  06d1455... The main frame is help weak by the application. Reorder a b
  bae2670... Re-indent
  cfb4bf8... Fix the "open_library" file requester. It is "select folder
  0e916db... C++11 the selection controller signal handler.
  291b191... Hold the selectable as a weakPtr. So that we can ensure mem
  7c4cd0a... C++11 the selection controller.
  27023e6... Fix crash on quit.
  12ace89... Add option for libasan
  1e700d1... Fix the menu bar display. Remove the "hide title bar" until
  8842754... Merge branch 'action-rework'