Release 0.24.0

- Added `compute_eval_from_predictions` utility for computing evaluation metrics after experiments have been run.
- Made rounding consistent in Python 2 `kappa` code use banker's rounding, just like Python 3 does.
- Added support for printing model weights for linear SVR (#110)
- Made `print_model_weights` only print all negative or all positive weights (#105)
- Little PEP8 and documentation tweaks.