wmacpi: Bump to version 2.2rc4.

wmacpi: Bump to version 2.2rc4.

Source obtained from http://sourceforge.net/projects/wmacpi/files/.

2008 November 14 2.2rc4
	Change the way that we sleep/wait for activity, to use select
	rather than a fixed-length sleep, supplied by Julien Blache of
	Debian:

	Hi,

	The attached patch for wmacpi makes it use select() instead of
	sleeping. It also adjusts the timeout of the select() call
	depending on the blink & scroll options.

	If scrolling is not activated, there's no reason to wake up
	10x/sec. If blinking is activated, waking up once per second is
	enough. If blinking is not activated, then we can wake up just to
	update the data and we're fine.

	With scrolling and blinking disabled, this saves a number of
	wakeups and helps battery life. Unfortunately there's another
	source of wakeups that's probably due to libdockapp that still
	makes 6 wakeups/seconds (in another thread it seems).

	With this patch wmacpi makes a best effort to match the sample
	rate set by the user, but that's hardly an issue I think.

	I haven't released this patch yet in Debian, so if you like it and
	want to roll out a release, feel free :) Otherwise I'll add it to
	the package soon.

	Thanks,

	JB.