Bug in utility/rotate_vec.m

[colucix]

At lines 126:127 for 3D vector fields, we should have

        Vout(i,1:Mm)=-UatV(1,2:M ,:).*sin(Vangle(1,1:Mm,:))-          ...
                      Vinp(i,1:Mm,:).*cos(Vangle(1,1:Mm,:));

instead of

        Vout(i,1:Mm)=-UatV(1,2:M ).*sin(Vangle(1,1:Mm))-              ...
                      Vinp(i,1:Mm).*cos(Vangle(1,1:Mm));

This is for the rotation at the edges [1,L] of the vector field. Thank you.