src/clfswm-expose-mode.lisp (define-expose-letter-keys): Add 0..1 and A..Z keys to select a child in expos mode.

src/clfswm-autodoc.lisp (produce-conf-var-doc-html): Produce a documentation for all configurable variables in CLFSWM - HTML version.

src/clfswm-autodoc.lisp (produce-all-docs): Produce a documentation for all configurable variables in CLFSWM.

src/clfswm-expose-mode.lisp (expose-mode-display-accel-windows): New functions. Add a window on each child in the expose mode to quickly select them.

set-no-layout-remember-size): New layout: Maximize windows in there frame - Leave frames to there actual size.

handle-enter-notify: sloppy-select mode. Select a child and its parents on mouse over. Add a menu entry to set a focus policy for all frames.

handle-enter-notify: Add a sloppy strict focus policy -> Sloppy focus only for windows in the current frame.

main, main-unprotected: Handle error in a superior main function. Now CLFSWM can't break the X session. It just reinitialize the display and run a new main loop. reload-clfswm: New function to reload CLFSWM. Rename quit-clfswm to exit-clfswm.

Factorize layouts in menu. Allow comments in menu. Main window layout for top, bottom and left direction

Massive update: Fast layout switch, switch to last child, color nearly everywhere (Help, keys...), simple way for corners configuration, auto-doc on corners, show configuration variables