Log Message:
Update to 1.68:

1.68 2015-01-24
     Fixed a problem on OSX when macports openssl 1.x is installed: headers from
     macport were found but older OSX openssl libraries were linked, resulting
     in "Symbol not found: _EVP_MD_do_all_sorted".
     Added notes about runtime error "no OPENSSL_Applink", when calling
     Net::SSLeay::P_PKCS12_load_file.