Improved compare.wvar
Improved compare.wvar

Avoided growing objects to make it faster
Changed error to warning message
Added parameter auto.robustness.label


Former-commit-id: 1f3b9c10abbd2ec99d4eb4e5dc3de884ddfa5d43
SMAC-Group/gmwm,SMAC-Group/gmwm,SMAC-Group/gmwm,SMAC-Group/gmwm