message: Make license check really optional.
diff: @@ -81,7 +81,7 @@ const license = function (roboter, userConfiguration) {
  const cwd = process.cwd(),
  myLicense = getLicense(cwd);
  - if (!myLicense) {
  + if (!myLicense || myLicense === 'UNKNOWN') {
  gutil.log('Failed to get own license, skipping license check.');
  return done(null);
  