new formula: MADlib 1.6.0.

MADlib: Big Data Machine Learning in SQL for Data Scientists.

MADlib is a library that allows you to apply many statistical
and machine learning algorithms to data that resides in a DBMS
(PostgreSQL).

This formula has been tested with OS X Lion (10.7.5) and OS X Mavericks (10.9.4).
Sure, but any test better than this must access a database, because what `madpack` does is manage a bunch of stored procedures in a database. Can I assume that a PostgreSQL server is available when the tests are run? If so, can I `su postgres`? Or otherwise, how would I create a test database? If a database could be accessed, `madpack` own tests could be run, which would be nice.

The test above is simplistic, but at least it checks that all module dependencies are resolved.