Model feature names

[garethjns]

The trained model used for the Kaggle entry were trained with an older version of the features object that combined feature names from different epoch lengths incorrectly.

This bug is left in the new version of featuresObejct included here to maintain compatibility with the Kaggle model (MATLAB looks for specific table column names). New models are still trained with incorrect feature names.

Feature naming code needs correcting in featuresObject.compileFeatures().