that macro fits better here since there's no transport
specific code.

This has nothing to do with the transport.

Some of them are unused, some of them were missing. Also add a list of
the available debug macros.

Fixes ArcticaProject/nx-libs#825

no functional change

no functional change

turns out that our composite is much newer than xorg 6.9/7.0...

we don't have that...

  commit 312910b4e34215aaa50fc0c6092684d5878dc32f
  Author: Chase Douglas <chase.douglas@canonical.com>
  Date:   Wed Apr 18 11:15:40 2012 -0700

    Update currentTime in dispatch loop

    A request, like input device grabs, may check a request timestamp
    against currentTime. It is possible for currentTime to lag a previously
    sent event timestamp. If the client makes a request based on such an
    event timestamp, the request may fail the validity check against
    currentTime unless we always update the time before processing the
    request.
Signed-off-by: Chase Douglas <chase.douglas@canonical.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>