qsort-def.h: makes indexes unsigned
qsort-def.h: makes indexes unsigned

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