mathop.c : bug fix in _vl_distance_mahalanobis_sq_
mathop.c : bug fix in _vl_distance_mahalanobis_sq_

See Issue #69 for details : https://github.com/vlfeat/vlfeat/issues/69
j-bo/vlfeat,j-bo/vlfeat,j-bo/vlfeat,j-bo/vlfeat,j-bo/vlfeat