Colorbars not valid axis handles in MATLAB R2014b

Get error when try to plot SOM using MATLAB 2014b:

`Handles of type ColorBar cannot be made the current Axes.`

It's due to [colorbars  being handled in a different way in MATLAB 2014b](http://www.mathworks.co.uk/help/matlab/graphics_transition/why-are-colorbars-and-legends-not-valid-axes-handles.html).