Added Open()  to BedWindow::WindowIntersectBed().
Added Open()  to BedWindow::WindowIntersectBed().

jmarshall/bedtools2,jmarshall/bedtools2,arq5x/bedtools2,arq5x/bedtools2,jmarshall/bedtools2,arq5x/bedtools2,jmarshall/bedtools2,jmarshall/bedtools2,arq5x/bedtools2,arq5x/bedtools2