Fix bug for nuc-elec gradient in qmmm itrf
Fix bug for nuc-elec gradient in qmmm itrf

Conflicts:

	future/qmmm/itrf.py

sunqm/pyscf,gkc1000/pyscf,sunqm/pyscf,sunqm/pyscf,gkc1000/pyscf,gkc1000/pyscf,sunqm/pyscf,gkc1000/pyscf,gkc1000/pyscf