Return a dict with GRR version information.

def Version():
  """Return a dict with GRR version information."""

  version_ini = VersionPath()

  config = configparser.SafeConfigParser()
  config.read(version_ini)
  return dict(
      packageversion=config.get("Version", "packageversion"),
      major=config.getint("Version", "major"),
      minor=config.getint("Version", "minor"),
      revision=config.getint("Version", "revision"),
      release=config.getint("Version", "release"))