Models retraining functionality added (#169)

Hyperparameters added to models interfaces (#168)

KNN models: serialization/deserialization added (#166)

precision metric added (#143)

ml_dataframe 0.2.0 supported (#142)

README: Examples on prediction and collecting learning data added (#141)

collectLearningData argument added to SoftmaxRegressor default constr…

…uctor (#140)

README: Advanced usage example on Logistic regression (#139)

splitData helper added (#138)

Rename and reorganise data splitters (#137)