modify get_latent_states to return M_c as well, label z matrix with column names
modify get_latent_states to return M_c as well, label z matrix with column names

mit-probabilistic-computing-project/crosscat,fivejjs/crosscat,mit-probabilistic-computing-project/crosscat,probcomp/crosscat,fivejjs/crosscat,mit-probabilistic-computing-project/crosscat,probcomp/crosscat,JDReutt/BayesDB,mit-probabilistic-computing-project/crosscat,JDReutt/BayesDB,JDReutt/BayesDB,poppingtonic/BayesDB,poppingtonic/BayesDB,fivejjs/crosscat,probcomp/crosscat,poppingtonic/BayesDB,mit-probabilistic-computing-project/crosscat,probcomp/crosscat,fivejjs/crosscat,fivejjs/crosscat,fivejjs/crosscat,JDReutt/BayesDB,poppingtonic/BayesDB,mit-probabilistic-computing-project/crosscat,fivejjs/crosscat,probcomp/crosscat,probcomp/crosscat,probcomp/crosscat,probcomp/crosscat,mit-probabilistic-computing-project/crosscat,poppingtonic/BayesDB,JDReutt/BayesDB