Add octave forge quaternion package * Makefile.am: add quaternion to OCTAVE_FORGE_PACKAGES. * build_packages.m: add quaternion package to install. * dist-files.mk: add of-quaternion.mk. * index.html: add of-quaternion-package. * src/quaternion.mk: New file.

#include <google/protobuf/stubs/common.h>

int
main()
{
    GOOGLE_PROTOBUF_VERIFY_VERSION;
    google::protobuf::ShutdownProtobufLibrary();
    return 0;
}