[GNU ELPA] Exwm version 0.28

[ELPA update]

Version 0.28 of package Exwm has just been released in GNU ELPA.
You can now find it in M-x list-packages RET.

Exwm describes itself as:

  ======================
  Emacs X Window Manager
  ======================

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

## Summary:

  Overview
  --------
  EXWM (Emacs X Window Manager) is a full-featured tiling X window manager
  for Emacs built on top of [XELB](https://github.com/ch11ng/xelb).
  It features:
  + Fully keyboard-driven operations
  + Hybrid layout modes (tiling & stacking)
  + Dynamic workspace support
  + ICCCM/EWMH compliance
  + (Optional) RandR (multi-monitor) support
  + (Optional) Built-in system tray

  Installation & configuration
  ----------------------------
  Here are the minimal steps to get EXWM working:
  1. Install XELB and EXWM, and make sure they are in `load-path'.
  2. In '~/.emacs', add following lines (please modify accordingly):

     (require 'exwm)
     (require 'exwm-config)
     (exwm-config-example)

  3. Link or copy the file 'xinitrc' to '~/.xinitrc'.
  4. Launch EXWM in a console (e.g. tty1) with

## Recent NEWS:

[Not available 🙁]