Implements a soft threshold for Marginal Likelihood Estimation of hard cutoffs
Fixes a bug where the cutoff for the marginal likelihood estimate would sometimes be applied to the wrong parameters.

git-svn-id: http://beast-mcmc.googlecode.com/svn@6600 ca793f91-a31e-0410-b540-2769d408b6a1
setPathParameter now is public, should work again, sorry!

git-svn-id: http://beast-mcmc.googlecode.com/svn@6601 ca793f91-a31e-0410-b540-2769d408b6a1
Fixes a bug where soft thresholding was not applied to likelihood functions
Implements soft thresholding for the Latent Factor Model

git-svn-id: http://beast-mcmc.googlecode.com/svn@6602 ca793f91-a31e-0410-b540-2769d408b6a1