Work around subrs that block EXWM; other minor fixes

Some subrs (e.g. x-file-dialog) create X windows and block the execution of
EXWM, so they won't work normally.  This commit partly fixes this issue by
invoking them in a subordinate Emacs instance and trying to fetch the
result back.

* exwm.el (exwm-blocking-subrs): New variable for specify such subrs.
* exwm.el (exwm-enable, exwm--server-name, exwm--server-stop)
  (exwm--server-eval-at): The implementation.

* exwm-core.el:
* exwm-floating.el:
* exwm-layout.el:
* exwm-manage.el:
* exwm-randr.el:
  Evaluate constants at compile-time.

* README.md: Renamed from README.org to make the 'Commentary:' section
  used by GNU ELPA instead.

* exwm.el: Depends on XELB version 0.3.

0 files changed, 0 insertions, 0 deletions