Corrected the call of the new getProbeDensity() function in examples/ppr/hartree2FFs.py
Corrected the call of the new getProbeDensity() function in examples/ppr/hartree2FFs.py

ProkopHapala/ProbeParticleModel,ProkopHapala/ProbeParticleModel,ProkopHapala/ProbeParticleModel