title: Using gulp-modernizr how to set the config file?
body: <p>I am using gulp-modernizr and I have read how to set destination folder, file name and many options (everything explained in the <a href="https://www.npmjs.com/package/gulp-modernizr" rel="nofollow">documentation</a>) </p>
  
  <p>But I don't know how to set configuration file, I have tried setting the src but it doesn't work:</p>
  
  <pre><code>gulp.task('modernizr', function() {
  gulp.src("./node_modules/modernizr/lib/config-all.json") 
      .pipe(modernizr('outputFileName.js'))
      .pipe(gulp.dest('node_modules/modernizr/')) // destination folder
  });
  </code></pre>
  
  <p>I know how to do it from command line:</p>
  
  <pre><code>modernizr -c ./lib/config-all.json 
  </code></pre>
  
  <p><strong>But could anybody explain how to set the configuration file location using gulp-modernizr?</strong></p>