Updated version of calc_freq_code.f90 (for spectralfit module).
Updated version of calc_freq_code.f90 (for spectralfit module).

The updated version uses 180 cm^-1 as the new lower bound of vibrational
frequency and revises some initial guesses.

comocheng/RMG-Py,nyee/RMG-Py,pierrelb/RMG-Py,faribas/RMG-Py,enochd/RMG-Py,nickvandewiele/RMG-Py,nyee/RMG-Py,nickvandewiele/RMG-Py,comocheng/RMG-Py,enochd/RMG-Py,chatelak/RMG-Py,KEHANG/RMG-Py,chatelak/RMG-Py,KEHANG/RMG-Py,faribas/RMG-Py,pierrelb/RMG-Py