Added dependency on datatype

This release adds a missing dependency on the datatype module.

Port to yasos and CHICKEN 5

This release includes a refactoring to use a yasos-based interface and a port to CHICKEN 5.

Default bucket-size value for list->kd-tree*

This release adds a default value for the bucket-size argument of list->kd-tree*

Added list->kd-tree* procedure

This release adds a new procedure to the KdTree class, list->kd-tree*. This procedure assumes that elements in the input list take the form (INDEX POINT VALUE) and preserves the point indices in the created tree.

Using new random-mtzig API in tests

4.12

corrected unit tests to use new random-mtzig api