v0.3.1

BayesML 0.3.1 Release Note

• calc_pred_dist of linear regression model and meta-tree model support matrix input. So, we can make batch prediction.
• Implement the fit and predict function in the following models.
  • bernoulli
  • categorical
  • exponential
  • linearregression
  • metatree
  • multivariate_normal
  • normal
  • poisson
• Update README and website.