[glade] (90 commits) Non-fast-forward update to branch wip/nielsdg/intltool2gettext

[Martin Blanchard <mablanch src gnome org>]

The branch 'wip/nielsdg/intltool2gettext' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  80ab0e4... Migrate from intltool to gettext
  347cd81... Makevars: fix wrong bugzilla link.
  2d24ac1... ci: Enable test suite

Commits added to the branch:

  e59e5b2... Turn error into warning (*)
  02e6604... GladeGtkHeaderBar: Improve position packing property handli (*)
  225f6f3... GladeGtkBox: improve children sort function (*)
  ad26702... Bump Gtk required version to 3.22 (*)
  bc0e26c... Add initial support for GFile type properties (*)
  815cc6a... Gtk plugin: add support for GFileIcon (*)
  4c3cbe3... GladeModelButton: enable icon/iconic properties (*)
  2c55455... GladeEditorProperty, GladePropertyClass, GladeWidgetAdaptor (*)
  d866a08... GladeModelButton: improve editor (*)
  4e9893d... Updated Spanish translation (*)
  44577c8... widget-editor: Replace margin right/left for end/start (*)
  f6bee53... GladeWidget: add support for abstract classes (*)
  c2971c6... GladeGtkBin: add initial support for GtkBin abstract class (*)
  d666d33... Remove GladeInstantiable prefix from UI (*)
  4b3c208... GladeWindow: port to GtkApplication (*)
  583e024... GladeWidgetAdaptor: add glade_widget_adaptor_get_display_na (*)
  0b1d4e9... Fix tab/space identation (*)
  50b9898... Updated Slovenian translation (*)
  edf808a... Update Polish translation (*)
  9ead37a... Update German translation (*)
  493e0c2... GtkActionable: add action-target property (*)
  5f08b3a... GladeEPropAttrs: use sane adjustment values for size and sc (*)
  fc71f32... Updated Slovenian translation (*)
  cfa6d6c... Update Polish translation (*)
  f787130... Updated Lithuanian translation (*)
  a0d1b58... GladeWindow: move actions to GtkApplication (*)
  159a2ba... GladeWindow: simplify pointer mode actions (*)
  b237bae... GladeIntro: use name and buildable name to find widgets (*)
  59a6a46... Update Turkish translation (*)
  85e8036... Update Polish translation (*)
  71c5879... Update Turkish translation (*)
  ce3780e... Update German translation (*)
  d92387f... Updated Lithuanian translation (*)
  43734fa... Update Brazilian Portuguese translation (*)
  2f946d6... Update Romanian translation (*)
  8da9d7a... Updated French translation (*)
  5ef2da7... Update Kazakh translation (*)
  db243b5... Update Indonesian translation (*)
  8f188f8... Update Italian translation (*)
  1540499... Update Korean translation (*)
  5dfcc73... Updated Czech translation (*)
  1e44a10... Update Galician translation (*)
  3254723... Update Hungarian translation (*)
  d4c5ce9... Update Latvian translation (*)
  e6ab26a... Updated Danish translation (*)
  91b6501... Update Swedish translation (*)
  3e43e42... Updated Spanish translation (*)
  bfd3020... GNOME Bugzilla has been replaced by GNOME Gitlab (*)
  db79d55... Updated Slovenian translation (*)
  b8db53c... Updated Danish translation (*)
  8553bf0... GladeEditor: expose signal editor widget as a property (*)
  949ee16... GladeProject: add handler signals (*)
  08bf49a... GladeIntro: fix regresion in find_widget_forall() (*)
  2ddc72f... Updated Slovenian translation (*)
  363fd78... Add initial implementation of Automatic Templates (*)
  daeb85c... Updated Spanish translation (*)
  f6a2606... Update Swedish translation (*)
  29e23e5... Update Swedish translation (*)
  7d85967... dtd: Add several new elements (*)
  a5ff472... gladeui: Fix GIR package reference and add c-include (*)
  09d1426... Update Polish translation (*)
  12e0cc9... Update Polish translation (*)
  1a07a1b... Updated Spanish translation (*)
  00645a5... Update French translation (*)
  5a2d74f... Update French translation (*)
  0905229... Update Hungarian translation (*)
  9b1f9c0... Update Hungarian translation (*)
  1d58112... Update Galician translation (*)
  2aa752d... Update Indonesian translation (*)
  f54b07f... Update Turkish translation (*)
  9bb50ac... packaging: Add snap packaging (*)
  1821437... snap: switch to core18 (*)
  f6bd47b... Updated Czech translation (*)
  55778a4... Update Catalan translation (*)
  2b2386c... snap: Use a version-script to generate a friendlier version (*)
  1e7e376... Updated Danish translation (*)
  8629633... Update Korean translation (*)
  39676dd... Update Dutch translation (*)
  2c460bd... Migrate from intltool to gettext (*)
  93d8894... ci: Enable test suite (*)
  d857fc2... Stop defaulting missing images to deprecated stock icons (*)
  8341cf7... Use autoreconf instead deprecated gnome-common (*)
  2dbaeef... GladeProject: escape markup in parser errors (*)
  7d62cef... icon: update app icon (*)
  ecf4dea... gladeui-2.0.pc: Data paths relative to datadir (*)
  39120cb... Update POTFILES.skip (*)
  d34083f... Update POTFILES.skip (*)
  15d9d75... Add translator comments to the .desktop file (*)
  7726c09... snap: update for icon filename changes (*)
  0d2f18b... Fix xgettext string extraction for catalogs

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