Fixed linux issues preventing app from launching.
Fixed linux issues preventing app from launching.

raptor-chess/raptor-chess-interface,raptor-chess/raptor-chess-interface,raptor-chess-interface/raptor-chess-interface,NightSwimming/Raptor-Chess,NightSwimming/Raptor-Chess,raptor-chess-interface/raptor-chess-interface,evilwan/raptor-chess-interface,NightSwimming/Raptor-Chess,raptor-chess-interface/raptor-chess-interface,NightSwimming/Raptor-Chess,evilwan/raptor-chess-interface,raptor-chess-interface/raptor-chess-interface,evilwan/raptor-chess-interface,raptor-chess/raptor-chess-interface,evilwan/raptor-chess-interface,raptor-chess/raptor-chess-interface