Parameter 'nargout' added to the function 'predict'. Special treatment for classification likelihood functions added. Printing iteration results during optimization process in the GP's 'fit' function added.
Parameter 'nargout' added to the function 'predict'. Special treatment for classification likelihood functions added. Printing iteration results during optimization process in the GP's 'fit' function added.

depet/scikit-learn,depet/scikit-learn,depet/scikit-learn,depet/scikit-learn,depet/scikit-learn