[gtk+/wip/gapplication-2-22] (25 commits) ...Port to latest GApplication API

[Colin Walters <walters src gnome org>]

Summary of changes:

  8cd4c38... Update list of US Letter locales (*)
  a184432... Make the !xkb build survive a little longer (*)
  c81abfa... Document GSEAL_ENABLE with other preprocessor symbols. (che (*)
  60d1ac5... Remove long-obsolete docs (*)
  ef2dc17... Deprecate GtkBoxChild (*)
  239cfdd... Create the navigation region without flipping (*)
  4309123... Get rid of navigation region in GtkMenu (*)
  5616bdc... Implement GdkRegion in terms of cairo_region_t (*)
  dde9cf2... Remove _gdk_region_new_from_yxbanded_rects() (*)
  821dd33... Deprecate the GdkRegion API (*)
  45a83fd... Honor PPD reading over listing of printers (*)
  2aa5608... Fix libjasper test (*)
  15037df... add a transfer none annotation to gtk_tree_view_get_selecti (*)
  fd20ac0... Revert "Deprecate the GdkRegion API" (*)
  863853e... Revert "Remove _gdk_region_new_from_yxbanded_rects()" (*)
  6c7dc26... Revert "Implement GdkRegion in terms of cairo_region_t" (*)
  4acc271... GtkWindow: Add gtk_window_has_group() (*)
  c4b1bbf... Bug 607628 - DnD operation doesn't work when using offscree (*)
  cfb988a... Seal gdk (*)
  b0359fb... Deprecate GTK_NO_REPARENT (*)
  e89187f... annotation fixes (*)
  84e9c08... gtk_tree_view_get_model: return value annotated transfer no (*)
  3e16fd9... gtk_tree_selection_get_selected: added transfer none annota (*)
  2ef3132... Merge branch 'gtk-2-22' into wip/gapplication-2-22
  26265c6... Port to latest GApplication API

(*) This commit already existed in another branch; no separate mail sent