fixed a bug in perl functions
fixed a bug in perl functions

junghans/csg,MrTheodor/csg,junghans/csg,richardjgowers/csg,votca/csg,votca/csg,junghans/csg,junghans/csg,richardjgowers/csg,MrTheodor/csg,junghans/csg,votca/csg,junghans/csg,MrTheodor/csg,votca/csg,MrTheodor/csg,richardjgowers/csg,richardjgowers/csg,MrTheodor/csg,richardjgowers/csg