anchor.diff:  
   mangoo I/O uses the mature and well documentated
   https://commons.apache.org/proper/commons-email/[Apache Commons Email].
  -mangoo I/O offers some convenient functions to make sending eMails as
  -easy as possible. If you want to send an eMail via mangoo I/O you need
  +to make sending eMails as easy as possible. If you want to send an eMail via mangoo I/O you need
   the Mailer object. This can be easily injected in your controller.
   
   [source]
  
positive.code: Genereal information on using WebScokets can be found
  http://en.wikipedia.org/wiki/WebSocket[here]. To use WebSockets in
  mangoo I/O you have to extend the MangooWebSocket class in your WebSocket controller. Extending this
  class offers you the entry points for WebSockets methods.
  
  [source]
  -------------------------------------------------------------------------------------------------
  
negative.code: Router.mapRequest(Methods.GET).toUrl("/").onClassAndMethod(ApplicationController.class, "index");
  -------------------------------------------------------------------------------------------------
  
  This example maps a GET request to "/" to the index
  method in the ApplicationController class. Thus, when you open your
  browser and open the "/" URL the index method in the
  ApplicationController class will be called.
  
  [NOTE]
  The Routes class has to implement the MangooRoutes interface to work properly.
  
  === Controller methods
  
  Every controller method, whether it renders a template, sends JSON or
  just returns a HTTP Status, must return a Response object. This is handled by
  using the Response class of mangoo I/O. Here is an example of how a
  controller method may look like.
  
  