[kernel] fix bug in levels of MoreauJeanGOSI
[kernel] fix bug in levels of MoreauJeanGOSI

radarsat1/siconos,fperignon/siconos,bremond/siconos,bremond/siconos,radarsat1/siconos,siconos/siconos,siconos/siconos,radarsat1/siconos,radarsat1/siconos,fperignon/siconos,bremond/siconos,fperignon/siconos,fperignon/siconos,siconos/siconos,fperignon/siconos,siconos/siconos,radarsat1/siconos,bremond/siconos,bremond/siconos