rename configure option for mass eigenvalue check
correcting mass eigenvalue error check

On 10/23/2014 08:05 PM, Jae-hyeon Park wrote:
> The error bound returned by fs_*() is an (approximate) upper limit on
> abs(MSd[i] - MSd_true[i]) common to all i.  Since this error is
> independent of i, a large hierarchy among the eigenvalues means a large
> relative error in the smallest eigenvalue.  I think this is what the
> referee said in his comment A-4-a.  Therefore, I would suggest checking
> the relative error of the eigenvalue with the smallest absolute value in
> the above code, e.g. like
>
>      eigenvalue_error > precision * std::abs(MSd[0]).
>
> This would also match the mass dimensions of both sides of the
> inequality, if precision is dimensionless.