added cv_number in file produced by FeatureVectorsCsvDumper so that debugging information can be produced also when crossvalidating; tweaked tests
refactored a few utility methods to explicitly take a list of parameters they need instead of a dictionary of dictionaries that may or may not contain these params
more of the same
partly integrated composers into the pipeline
added a real-world full thesaurus to the resources directory
started unit tests for feature selection