avoid warning due to non required version flag during saving in file_saveMatlab
avoid warning due to non required version flag during saving in file_saveMatlab

svendaehne/bbci_public,svendaehne/bbci_public,bbci/bbci_public,drsternburg/bbci_public,bbci/bbci_public,drsternburg/bbci_public,svendaehne/bbci_public,bbci/bbci_public,drsternburg/bbci_public