added a file to create the cross validation sets for the input file names.
refactored some code and added a function to extract the stored features.
changed the getTrueFeatures to discard the flags after it has filtered out the bad frames.
added a machine learning pipeline and a function that can create the GMM set.
added the training and testing for the machine learning part of the pipeline.
merging the new code for the machine learning pipeline in the audio pipeline with the survey code.