CF: magic/pray xp..

[Brian Thomas <thomas@xplorer.gsfc.nasa.gov>]

	Ok, I found another bug. This involves change_skill() and
	fix_player not properly updating the skill level as experience
	is gained by the player. As a result, spell effects are always
	at 1st level, and, if you do happen to kill a monster, you
	will get lots more exp than normal (since experience is adjusted
	for the relative difference in the experience levels of the 
	killer and the victim).

	Two files need to be patched.. skill_util.c and common/living.c.
	I will post these patches momentarily.

	Now, since this bug wont cause the player to not gain xp w/ 
	magic, there must be one more bug at least.. so Im off to get
	it. 

						-b.t.