Start implementing GUI for game: board drawing
Download image of black pawn in higher resolution
Render column names and row numbers next to chessboard
Implement recognizing clicked square on GUI chessboard
Add ability to move pieces on board in gui

Also fix problems with correct pieces drawing
Implement AI moves in GUI
Repaint board after player move, before computer start thinking
Add menu to gui window
Implement detection passed pawns, and simplify pawn moves generation a little
Fix problems with draws

Don't store draw scoes in transposition table, and return threefold
repetition after meeting the same position twice
Do mate as quickly as possible
Write skeleton for detecting game end in GUI
Report draw after seeing position 2 times also in quiescence search
Merge changes from 'master'
After end game show message to user
Change way of entering moves in console mode
Implement ability to computer play aginst computer in GUI
Still trying to fix problems with three fold draws

Now don't use transposition table, when you enctounter
the same position for second time, you don't want to choose
the same move
Implement New game menu buttons
Add some graphics effects, mark squares on chessboard

Mark squares:
	* last move
	* checked king
	* possible moves