This release makes GPfit object-oriented, with fit-type-specific sub-classes (e.g. SoftmaxAffine) derived from a _Fit parent class. These classes have print and plot methods (plot_surface and plot_slices for 2D fits). They also include the ability to save fits, both to a pickle file and to a text file. A convenience function fit remains for one-line creation of fits.
Finally, the documentation also gets a facelift, a restructure, installation instructions and a tutorial page.