0.4.5 Fix small bug in computing p-value for bn.test
      (unmodified).  Add test for bn.test (modified).
1.0 Huge release.  Add lots of methods (dc.test, fast.test,
      (mlink.test, rflex.test, etc.)  Dramatic restructure
      of many functions.
1.1 Add cepp.test (and related).  Fix some documentation.
