Removed KMeans code. Closes #3
Changed use of old stof and stoi functions to the new templated ToNumber and ToString functions in Utilities/StringFunctions.
Moved SpectralCluster code to a folder for babel experiments. Closes #4
Added comments to the DiagonalGaussian code. Closes #5.
Commented MixtureOfDiagonalGaussians code. Closes #6
Added comments to the HiddenMarkovModel code. Closes #7
Commented HmmSet. Closes #8.