Only run continuous check for continuous vars in WLS.
Comment out speed checks for continuous WLS.
A completed version of the 3x3 Hessians for WLS
Added 3x3 hessian computations for covariances, analytic gradients and hessians for univariate normal, and indexing functions for pre-allocating matrices and vectors of results.
Move starting value of state space example within bounds.
Trying to debug WLS.
Add check for positive definite expected covariance matrix for state space expectations.
Add univariate variance Jacobian and Hessian estimation to WLS.
Add identified hessian test.
Update wls normLogLik function.