reviewed after comments.
reviewed after comments.

* added OWASP link
* closed closure code

vert-x3/vertx-web-site,michel-kraemer/web-site,vietj/vertx,vert-x3/vertx-web-site,vietj/vertx,vert-x3/vertx-web-site,woorea/vertx-web-site,vietj/vertx,woorea/vertx-web-site,michel-kraemer/web-site,woorea/vertx-web-site,michel-kraemer/web-site