* Fix: resize grip
* Fix: F10 hotkey
* Option removed: autostart-command
* Fix: save "last-user" state key in start_authentication(). Don't ask me why.
* Option "appearance/position": syntax changed
* Fixed: prevent invoking on_user_selection_changed() before init_user_selection()
* Outdated code removed
+ Composite widgets: users, sessions, languages.
* Invalid "#include"
* Default composite widgets layout fixed
+ New property for composite widgets default implementation: text-weight (int)
* show_message(): "stock" items removed