Adding npm version badge, and updating Travis CI badge to markdown format.
Adding npm version badge, and updating Travis CI badge to markdown format.

EvanLovely/grunt-drupal-tasks,EvanLovely/grunt-drupal-tasks,phase2/grunt-drupal-tasks,AndBicScadMedia/grunt-drupal-tasks,phase2/grunt-drupal-tasks,puppetlabs/grunt-drupal-tasks,EvanLovely/grunt-drupal-tasks,puppetlabs/grunt-drupal-tasks,puppetlabs/grunt-drupal-tasks,phase2/grunt-drupal-tasks,AndBicScadMedia/grunt-drupal-tasks,AndBicScadMedia/grunt-drupal-tasks,EvanLovely/grunt-drupal-tasks,puppetlabs/grunt-drupal-tasks,AndBicScadMedia/grunt-drupal-tasks