Use the libYAML version of yaml if it's available
Use the libYAML version of yaml if it's available

kevin1024/vcrpy,aclevy/vcrpy,gwillem/vcrpy,graingert/vcrpy,IvanMalison/vcrpy,agriffis/vcrpy,kevin1024/vcrpy,bcen/vcrpy,mgeisler/vcrpy,poussik/vcrpy,graingert/vcrpy,poussik/vcrpy,yarikoptic/vcrpy,ByteInternet/vcrpy,ByteInternet/vcrpy