shuffle-def.h: removes 32 bit indexes limitation
shuffle-def.h: removes 32 bit indexes limitation

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