[GNU ELPA] Vundo version 2.2.0

[ELPA update]

Version 2.2.0 of package Vundo has just been released in GNU ELPA.
You can now find it in M-x list-packages RET.

Vundo describes itself as:

  ================
  Visual undo tree
  ================

More at https://elpa.gnu.org/packages/vundo.html

## Summary:

  Vundo (visual undo) displays the undo history as a tree and lets you
  move in the tree to go back to previous buffer states. To use vundo,
  type M-x vundo RET in the buffer you want to undo. An undo tree buffer
  should pop up. To move around, type:

    f   to go forward
    b   to go backward

    n   to go to the node below when you at a branching point
    p   to go to the node above

    a   to go back to the last branching point
    e   to go forward to the end/tip of the branch
    l   to go to the last saved node

    m   to mark the current node for diff
    u   to unmark the marked node
    d   to show a diff between the marked (or parent) and current nodes

    q   to quit, you can also type C-g

## Recent NEWS:

<2023-12-08 Fri>: Version 2.5.0

vundo-diff introduced, providing on-demand diff functionality.  Diff's
are evaluated between the current node and either its parent node, or,
if any, a marked node.  New key commands:

  (m)ark   - mark a node for diff
  (u)nmark - unmark any marked node
  (d)iff   - diff between current and marked or parent node

The (d)ebug command has been moved to (D)ebug.

<2022-04-23 Sat>: Version 2.0.0

Breaking change:

- ‘vundo--window-max-height’ is now ‘vundo-window-max-height’ (double
  dash -> single dash).
- Vundo commands are not shown in the global M-x (since they are not
  used that way anyway).

New features:

- New hooks ‘vundo-pre-enter-hook’ and ‘vundo-post-exit-hook’.


<2022-04-04 Mon>: Version 1.0.0


<2022-03-29 Tue>: ‘vundo--mode’ and ‘vundo--mode-map’ are now
‘vundo-mode’ and ‘vundo-mode-map’. A new custom option
‘vundo-compact-display’ is added.


<2022-03-23 Wed>: UI now defaults to ASCII mode. ASCII mode also draws
differently now, it now draws

    o--o--o     instead of      o--o--o
    |  `--x                     |  +--*
    |--o                        |--o
    `--o                        +--o


<2021-11-26 Fri>: Variable ‘vundo-translate-alist’ changed to
‘vundo-glyph-alist’ and has different value now.