version 1.0 (2013-12-04):
  first public release and distribution via WWW

version 1.1 (2015-03-08):
  the gammadist.test function and the goats dataset were included 
  the gumbel.test function was removed

version 1.1 (2015-09-20):
  the gammadist.fit, ig.fit, ig.test and gpd.fit functions were included 
