Fix RMG PDep bug writing measure input file.
Fix RMG PDep bug writing measure input file.

The commit e1f226c3d55b3233039f3911ff468c16573496fd changed the method for writing
a measure input file, but not the call to it from rmg/model.py
faribas/RMG-Py,nyee/RMG-Py,nickvandewiele/RMG-Py,enochd/RMG-Py,chatelak/RMG-Py,nickvandewiele/RMG-Py,nyee/RMG-Py,KEHANG/RMG-Py,faribas/RMG-Py,comocheng/RMG-Py,chatelak/RMG-Py,enochd/RMG-Py,pierrelb/RMG-Py,pierrelb/RMG-Py,comocheng/RMG-Py,KEHANG/RMG-Py