Changes to Version 1.0-0

   o Added functions for effects plots [see help(effect)].
   
   o Edited .Rd files to use \method{} for generics.
   
   o Changed some F's to f's
   
   o Modified durbin.watson to allow directional alternative hypotheses
   
Changes to Version 1.0-1

   o Reworked glm methods for Anova for type II LR and F tests to avoid scoping issues produced by use of update.
   
   o Added reset.par argument to scatterplot.default to allow addition of graphical elements to the plot.
   
   o The generic function Var and its methods are deprecated, in favour of vcov, now in the base package.
