Version 2.0

* Support built-in completion enhancements introduced in Emacs 29.
Built-in commands are now used when available.  Completions are
highlighted using built-in facilities when available.

* 'vcomplete-current-completion' can now be called from anywhere and
without any arguments (in which case point is used).

* Breaking changes

** 'vcomplete-with-completions-buffer' has been replaced with
'vcomplete-with-completions-window'.
This breaks the previously available Embark integration.

** 'vcomplete-search-range' is no longer used in Emacs 29+.

** 'vcomplete-current-completion' never throws a user error anymore.