src/clfswm-util.lisp (place-frames-from-xrandr, swap-frame-geometry, rotate-frame-geometry): New helper functions for multiple physical screen.

src/bindings-second-mode.lisp (set-default-second-keys): New key binding to set window and frame transparency. src/bindings.lisp (set-default-main-mouse): New mouse binding to set window and frame transparency.

src/clfswm-internal.lisp (show-all-children): Rectangular optimization to display only needed children.

src/clfswm-circulate-mode.lisp (select-brother-generic-spatial-move+right/left/up/down): New function to select a brother from another in a spatial move.

src/clfswm-pack.lisp (move-frame-constrained, resize-frame-constrained): New function. Move and resize frame with the mouse constrained by other frame brothers.

src/clfswm-internal.lisp (frame-select-next-child, frame-select-previous-child): New functions and bindings. Select the next/previous child in the current frame.

src/clfswm-info.lisp (show-first-aid-kit): Display the essential key binding in main and second mode.

src/clfswm-circulate-mode.lisp (select-next-subchild): Add the possibility to circulate over subchild of the current child.

src/xlib-util.lisp (with-handle-event-symbol): Use a filled list with handle-event-fun symbols instead of inspecting clfswm internals symbols on each mode change.

src/clfswm-expose-mode.lisp: Move and rename present*-windows in a separate clfswm-expose-mode.lisp file.

src/*.lisp: Replace the case to handle event with a more (tricky) lispy  method which bind a function to each keywords associated to graphics events. Remove event handler hooks as they're not needed anymore (To replace them: use closure and define-handler).

src/clfswm-internal.lisp (remove-child-in-frame): Do not destroy the frame window and the frame gc. Close a very annoying bug when cuting/pasting a frame or moving a child over frames with the mouse.

identify-key, move-window, resize-window, wait-mouse-button-release: Add a timeout in xlib:process-event.

Use the *binding-hook* to create main/second/info keys and mouse bindings. with-capslock, without-capslock, with-numlock, without-cnumlock: New functions.

src/clfswm-keys.lisp: Add a default modifiers list before bindings keys. This allow the use of Numlock or Caps_Lock while using clfswm.

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.

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