Updated the assemble_param_vector() method to the new relax design.
Updated the minimise() method to the new relax design.
Updated the grid_search() method to the new relax design.
Updates to the overfit_deselect() method.
Updated the overfit_deselect() method to the new design.
Fixes for the model_setup() method.
Updates to the data_init() method.
Updated the model_setup() method to the new design.
Updated the select_model() method to the new design.
Updated the __all__ list.