Fix setting model config, for crp mixture and naive bayes
Update requirements.txt

Matplotlib 1.2.0 is not longer supported by pip. As of 3/20/14 supported versions are 0.86.1, 0.86.2, 0.86, 0.91.0, 0.91.1, 1.0.1, 1.1.0, 1.1.1, 1.3.1
Merge branch 'master' of https://github.com/mit-probabilistic-computing-project/BayesDB into benParseBranch