optimized, bugs fixed, improved pawns eval
blocked bishop and knight eval added
decrease pawns score in middle-game
coeffs tuning
passed pawns group analyzer added
decrease pawn's weight in middle game to avoid exchange bishop to 3 pawns
restore passed pawns coefs
coeffs modification
calc material diff always
limited null-move, limited LMR, some coeffs changed
bug fixed in evaluator - game phase was incorrectly detected
revert some changes in eval. coeffs
restore old coeffs from commit:

Пт мар 01 12:05:33 2013
ade848e750b61f96f43d2903a
new king pressure algorithm
king attack bonuses changed
endgame detection changed
new mobility evaluation implemented, bug in king pressure eval fixed
most advanced pawn eval. added

root from king to promotion field is corrected - limit by distance
restore best eval
remove unused variable