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- Make all menus and shortcuts use the 'app.browse-history' action
- HistoryWindow: Inherit from Gtk.ApplicationWindow

- Show orange warning icon if a field is required
- Show red error icon if validation of the field failed
- Set validation error text as tooltip of the icon
- DataFormWidget emits a signal 'is-valid' on every change

like
The "flags" argument for dialog construction is deprecated. Please use initializer keywords: modal=True and/or destroy_with_parent=True.
or
Using positional arguments with the GObject constructor has been deprecated. Please specify keyword(s) for "title, transient_for, flags" or use a class specific constructor.

See: https://wiki.gnome.org/PyGObject/InitializerDeprecations

- Rename get_pep_as_pixbuf to get_pep_icon

- Complete rewrite of the dialog
- Use new DataFormWidget

This also makes it possible to get windows by an account/jid combination

https://github.com/pypa/setuptools/issues/1062

- A option dict can be passed which controls how the DataForfWidget looks
- Analyse the field label lengths and adjust the label justification (left/right)

- Use icon names for Tune and Location notifications
- Use None instead of an empty pixbuf when there is no data

Set the default list after the first window has been initialized. Only
set icons on Windows that are different from the default.

- Use get_builder
- Add get_app_icon_list() to gtk.util

All removed servers did not answer to a IBR request

- Use get_builder
- Sort imports
- Use load_icon instead of get_icon_pixmap