New model spaces

To run experiments over different model spaces one needs to: (a) write a generator SLP, (b) write a Prolog program that implements the likelihood function of a model given some input data, and (c) if desired, write programs for displaying the models on screen with graphics software.

You are strongly advised to create trivial scripts similar to run_test.pl and run_disp.pl as done in directories bns/, bns/rpdags/, carts/bcw/grow and carts/kyphosis/. During debugging you can add directive :- bb_put( sr, off ). to the script. This will direct all output to the terminal. The current version of MCMCMS can be found with mcmcms_version/1.