RobExtremes: 
+ fixed some issues with help of getVaR, getCVaR, ...
+ new print method for the results of these functions (and a corresponding S3class)
+ GEVFamily and GEVFamilyMuUnknown now have changed default starting estimators
  realized in startEstGEV.R : a CvM-MDE with xi varying on a grid...
+ GParetoFamily now handles left endpoint correctly and catches xi < -1/2
+ GEVFamily[MuUnknown] for xi>0 now handles left endpoint correctly and catches xi < -1/2
+ warning for large xi is switched off in GEVFamily[MuUnknown] if called internally
+ double definition of ddigamma eliminated
+ GEV now has a robust starting estimator for mu unknown


git-svn-id: svn://svn.r-forge.r-project.org/svnroot/robast@732 edb9625f-4e0d-4859-8d74-9fd3b1da38cb