vl_demo_cmd.m: update for new names (glx=>glnx32, a64, glnxa64)
vl_demo_cmd.m: update for new names (glx=>glnx32, a64, glnxa64)

j-bo/vlfeat,qubick/vlfeat,WangDequan/vlfeat,CansenJIANG/vlfeat,qubick/vlfeat,vlfeat/vlfeat,CansenJIANG/vlfeat,rxl194/vlfeat,richarddzh/vlfeat,hongzhili/vlfeat,erexhepa/vlfeat,erexhepa/vlfeat,j-bo/vlfeat,mylxiaoyi/vlfeat,richarddzh/vlfeat,erexhepa/vlfeat,cvfish/vlfeat,qubick/vlfeat,erexhepa/vlfeat,vlfeat/vlfeat,CansenJIANG/vlfeat,qubick/vlfeat,cvfish/vlfeat,rxl194/vlfeat,richarddzh/vlfeat,mylxiaoyi/vlfeat,CansenJIANG/vlfeat,qubick/vlfeat,richarddzh/vlfeat,erexhepa/vlfeat,cvfish/vlfeat,hongzhili/vlfeat,rxl194/vlfeat,vlfeat/vlfeat,hongzhili/vlfeat,WangDequan/vlfeat,cvfish/vlfeat,hongzhili/vlfeat,j-bo/vlfeat,cvfish/vlfeat,WangDequan/vlfeat,rxl194/vlfeat,mylxiaoyi/vlfeat,qubick/vlfeat,CansenJIANG/vlfeat,richarddzh/vlfeat,WangDequan/vlfeat,j-bo/vlfeat,vlfeat/vlfeat,rxl194/vlfeat,cvfish/vlfeat,WangDequan/vlfeat,erexhepa/vlfeat,vlfeat/vlfeat,rxl194/vlfeat,mylxiaoyi/vlfeat,richarddzh/vlfeat,hongzhili/vlfeat,hongzhili/vlfeat,mylxiaoyi/vlfeat,CansenJIANG/vlfeat,j-bo/vlfeat,vlfeat/vlfeat,mylxiaoyi/vlfeat,WangDequan/vlfeat