_SC_FTRI: Define message SOCBoardSpecialEdge for changes during game
_SC_FTRI: SOCBoardSpecialEdge at server, clients
SOCBoardLarge +getSpecialEdges(); clearSpecialEdges check value; setype -> seType
_SC_FTRI: SOCBoardPanel.drawBoardEmpty call getSpecialEdges() to reflect changes during play
_SC_FTRI: Temporary debug add SOCGame.advanceTurnStateAfterPutPiece as if player reached Special Edge; javadocs