Changes:
- NBS-Predict is now in v1.0.0-beta.6
- User can specify number of CPU cores to use.
- Fix minor bug in Elastic Net function.
- Add progress bar for loading connectivity matrices on the command
window.
- Minor change in loadData function to fasten .csv loading.
- Add balanced accuracy metric to measure accuracy in imbalanced
datasets.
- Add permutation testing to compare model performance against
null-distribution.
