Pcntoolkit

- New syntax for functions related to parallelization (python path is automatically generated)
- Support for slurm clusters has been added
- Updates to hierarchical Bayesian regression (different priors for intercepts and noise) for improved transfer
- Updated parameterisation for likelihood warping for improved stability
- Now uses a fixed pickle protocol for better interoperability
- Addition of a utility function for loading freesurfer measures
- Updated sphinx documentation

Minor bug fix relative to release 0.15. Fixed a transpose operation that would cause normative.py to fail in certain cases

A number of new functions have been implemented and we decided to use a new version numbering system to improve consistency.