Sun Oct 23 19:56:43 1994  Russell Marks  (rus@lifeson)

	* Added vt switching stuff. You need to specify two functions, one
	for 'undrawing' your screen (i.e. returning to text mode) and one
	for 'redrawing' it (if your program refreshes all the time, you
	can just switch back to graphics mode). You then need to enable vt
	switching, which is then checked for whenever you use
	scan_keyboard(). Your program will pause whenever another console
	is switched to.

	* Bugfix: disable ctrl-c (this meant that pressing the '2' key
	would cause bad things to happen) and similar keys. In other
	words, turn off ISIG and ICANON.

	* Started changelog.

