CHANGES IN 'nnc' VERSION 1.11 (2010-08-21)
    o    nncTest() for computing nnc in test sample
CHANGES IN 'nnc' VERSION 1.12 (2010-08-22)
    o    typographical correction in vignette
CHANGES IN 'nnc' VERSION 1.13 (2010-08-29)
    o    minor corrections to documentation 
    o    require MASS
    o    added Mathematica package for nnc computation in subdirectory Mathematica in the installation directory.


