Ticket #48348 - Running /usr/sbin/setup-ds.pl fails with Can't locate bigint.pm, plus two warnings
    
    Description: bigint.pm is deprecated and no longer packaged in perl-5.22.0
    on FC23.  This patch replaces bigint with more basic Math::BigInt.
    
    https://fedorahosted.org/389/ticket/48348
    
    Reviewed by rmeggins@redhat.com and wibrown@redhat.com (Thank you, Rich and William!!)
    
    (cherry picked from commit dfc9ad00a6bf0f8b86c4c24a01e06e3434a7ca41)