* Merge from Debian unstable (LP: #1485548).  Remaining changes:
  - d/libgtk2.0-0.symbols: update symbols file.
  - d/libgtk2.0-dev.manpages: add gtk-builder-convert.1 manpage.
  - d/rules: enable manpage.
  - d/update-icon-caches: run with "--include-image-data" flag.
  - add Ubuntu patches:
    + debian/patches/012_ubuntu-set-grab-add.patch
      - Added ubuntu_gtk_widget_set_has_grab so we can grab sliders and 
        things in menus, needed by ido
    + debian/patches/062_dnd_menubar.patch:
      - Allow click on menubars for dnd
    + debian/patches/063_treeview_almost_fixed.patch:
      - Add an ubuntu-almost-fixed-height-mode property, (required for
        software-center)
    + debian/patches/071_no_offscreen_widgets_grabbing.patch:
      - Don't let offscreen widgets do grabbing
    + debian/patches/090_logging_file_saves.patch:
      - improve the logging of saved files
    + debian/patches/092_default_to_xdg_document_dir.patch:
      - Use $XDG_DOCUMENTS_DIR as default directory rather than the home
        directory for the 'Print to File' function.
    + debian/patches/093_gtk3_gtkimage_fallbacks_use.patch:
      - Backported gtk3 patch to add a "use-fallback" property to GtkImage,
        using it "icon-name and GIcon type of GtkImages can use automatic
        fallback names.", it will be useful for the indicator stack
    + debian/patches/095_git_menus_scrolling.patch:
      - backported gtk3 commit to fix menu scrolling issues
    + debian/patches/096_git_gtkprintsettings.patch:
      - upstream git commit backported from the gtk3 serie, don't ignore the 
        gtkprintsettings resolution settings 
    + debian/patches/097_statusicon_image_fallback.patch: Make GtkStatusIcon
      images use fallbacks by default if the property is available.
    + debian/patches/098_multiarch_module_path.patch:
      - Fallback to the pre-multiarch directory for compatibility
    + debian/patches/099_printer_filename_fix.patch
      - Fix to the print dialog for print to file, make sure a non-hidden filename 
        is the default
    + debian/patches/100_overlay_scrollbar_loading.patch
      - support for dynamically loading overlay scrollbars
    + debian/patches/gtk-shell-shows-menubar.patch:
      - list gtk-shell-shows-menubar setting, that's required to have the local
        menubars hidding under unity in favor of the unity ones,
    + debian/patches/print-dialog-show-options-of-remote-dnssd-printers.patch:
      - Make printing on remote DNS-SD/Bonjour-shared printers work
    + debian/patches/backport_search_printer_location.patch
      -  The list of printers should be searchable/sortable
    + debian/patches/menubar_toolbar_dragging.patch:
      - Allow windows to be dragged using blank spaces in the toolbar as
        well as the menubar
    + debian/patches/use-secrets-service-for-cups-auth_info.patch
      - Backport of auth_info storing
    + debian/patches/printing-initialize-auth_info.patch
      - Fix to an upstream bug:
        https://bugzilla.gnome.org/show_bug.cgi?id=737777