Latest Psi4 version changes the header casing, so be more lenient during matching file type.
Latest Psi4 version changes the header casing, so be more lenient during matching file type.

gaursagar/cclib,cclib/cclib,ghutchis/cclib,cclib/cclib,langner/cclib,berquist/cclib,Schamnad/cclib,cclib/cclib,gaursagar/cclib,langner/cclib,berquist/cclib,langner/cclib,ATenderholt/cclib,ATenderholt/cclib,berquist/cclib,Schamnad/cclib,ghutchis/cclib