ChangeLog for implementation of Multi-ProbCut

* Base source is Crafty 18.15
* Most changes can be found by grepping "albert" in the sources.


chess.h:(definitions)
	added struct Param
	defined constants MAX_CHECK_HEIGHT etc.
	added function prototypes: InitializeParam(), AlphaBeta() etc

data.h: (extern variables)
	added extern declarations:
		struct Param param[MAX_CHECK_HEIGHT+1][MAX_STAGE]
		bookkeeping vars: pc_hits_high, pc_hits_low etc

data.c: (global variables)
	declared global variable:
		struct Param param[MAX_CHECK_HEIGHT+1][MAX_STAGE]
		pc_hits_high etc
	
	set king_safety_asymmetry to 0.  (make the evaluation function symmetric for both sides)
	initialize king_safety_scale to 125. (make king safty more important. this can be changed in the .craftyrc file)

	changed version string to "18.15_ProbCut"

init.c: (initialization)
	in function initialize(): added call to InitializeParam()
	added function InitializeParam():  initialize the param array

iterate.c: (iterative deepening engine)
	in function iterate():
		added some bookkeeping, e.g. pc_hits_high etc.

search.c: (the search function)
	in Search(): added MPC code

	added function AlphaBeta(): the search function without MPC

testing.c: new file
	added function SpeedTest()   ( this is for fixed-depth searches; for fixed-time search use "test" command)

Makefile:
	set default target to linux-i686-elf
	in target linux-i686-elf:
		removed "-DSMP -DCPUS=4"
	added testing.o to objects


added evaluation options: mpc_t0, mpc_t1, version
to set mpc thresholds and version string in the craftyrc file

renamed local resource file from .craftyrc to craftyrc (why hide it?)

report mpc_t? and version change
report that local resource file is used

