groovy uses python
Revert "groovy uses python"

This reverts commit 04b9c2721cdc9c799b3d02a4c5849f02f948648e.
Revert "Trimmed the branch to only the bayesian_belief_networks sub directory"

This reverts commit 52ce2478014b512bfc19435644827763ed3f7a70.
Rebase from 'upstream' (no changes)
Trimmed the branch to only the bayesian_belief_networks sub directory
groovy uses python