Compat: Add grab/window logging actions

Compat: Add grab/window logging actions

XF86LogWindowTree and XF86LogGrabInfo, included in very recent x11proto,
are new symbols to trigger the PrGrbs and PrWins actions, respectively.
These are new debugging actions which print useful information to the X
log.

See http://lists.x.org/archives/xorg-devel/2011-June/023314.html for
more information.  (Note that there is a slight mismatch with some of
the action names there, which was fixed in a later revision of the
patch.)

This should probably only be included in a new major release though, due
to http://cgit.freedesktop.org/xorg/app/xkbcomp/commit/?id=2a473b which
meant that using any unknown keysyms in an interp definition meant that
it turned into an Any+AnyOfOrNone(All) definition, so all your
non-action keys just dumped the window tree to the X log and did nothing
else.

Signed-off-by: Daniel Stone <daniel@fooishbar.org>