Update subfunction help text to match reality
Add test harness to evaluate parameter estimation
Correct M-step calculation for t-distributions

Implement EM-based MLE for a mixture of t-distributions, rather than
using the MLE for a mixture of Gaussians.
Add drift term to log-likelihood
Shift time-indexing of cluster means

mu(:,t,k) used to be the estimated mean of cluster k at time t-1. This
changes it to be the estimated mean at time t.
Increase ClusterCost in test harness example 2
Add documentation explaining the algorithm
Bugfix: Add missing log in logLikelihood

Bug was introduced in 896646df "Add drift term to log-likelihood"
Ensured EM is always run until convergence
Remove drift term from log-likelihood

This partially reverts commits 91a9eee and 896646d. Drift term in EM
iterations remains, since that’s what’s being optimized.
Got rid of code analyzer warnings
Removed old test harness
Updated credits
Merge branch 'bugfix/tdist'
Merge pull request #1 from aecker/master

Bugfix/tdist