Release 2.0.1 was released in Oct. 2014 as the working version to
accompany 'Oliveira, M., Crujeiras, R.M. and  Rodríguez-Casal, A. (2014).
'NPCirc: An R Package for Nonparametric Circular Methods.
Journal of Statistical Software, 61(9), 1-26., URL http://www.jstatsoft.org/v61/i09/.'