Minor updates and fixes.

Minor updates and fixes.

	* 17-emchat-sy.el (emchat-media-driver): Use sox until I get
	ffmpeg fixed in SXEmacs.

	* 16-riece-sy.el (riece-biff-check-channels): Cut down on the
	number of chans I keep an active eye on.

	* 16-riece-sy.el (sy-riece-startup-channel-list): Change list of
	chans I auto-join at start.

	* 11-pkgs-sy.el (vc-load-vc-hooks): Don't call it because it fucks
	up Tramp.

Signed-off-by: Steve Youngs <steve@sxemacs.org>