Log Message:
mate-session-manager: update to 1.22

### mate-session-manager 1.22.0

  * Translations update
  * initial travis-CI support
  * manager: restart user bus if last graphical session
  * systemd: add api for detecting if this is the last session for a user
  * gsm: Disconnect all dbus clients when dbus is disconnected
  * manager: don't wait for all clients to exit before exiting
  * [gsm-autostart-app] Migrate from dbus-glib to gdbus
  * gsm-app-dialog: make the seconds translatables in the spinbutton
  * disable deprecation warnings for distcheck
  * change app startup dalay where it in system path
  * Remove X-GNOME-Autostart-Delay support
  * Add a delay setting to Startup Manager
  * gsm-properties-dialog: avoid 'gtk_dialog_add_buttons' with stock ids
  * avoid 'gtk_dialog_add_button' with stock ids
  * mate-session-save: show icon in error dialog
  * Migrate from dbus-glib to gdbus
  * gsm-inhibit-dialog.ui: avoid deprecated GtkVBox
  * session-properties.ui: avoid deprecations
  * gsm-manager: avoid deprecated 'g_settings_list_schemas'
  * Avoid compile warning for g_type_class_add_private
  * Only show application name when run with --version
  * Strip outer single quotes from string value returned by gsettings in mate-wm \ 
script.
  * replace deprecated gdk_error_trap functions
  * Fixed typo in --logout-dialog option