anchor.diff:  
   NOTE: In previous versions, body was always available as `:body` attribute in the
   context, although is not very efficient approach, you can return the previous
  -behavior just using the `catacumba.handlers.parse/read-body` auxiliar handler on top
  +behavior just using the `catacumba.handlers.parse/read-body` auxiliary handler on top
   of your route pipeline or as decorator.
   
   
  
positive.code:                [:error my-error-handler-for-this-prefix]
                 [:any authentication-handler]
                 [:get "users" users-handler]
                 [:put "users" check-permissions-handler update-users-hander]]
                [:prefix "admin"
                 [:error my-error-handler-for-this-other-prefix]
                 [:get "dashboard" my-dashboard-handler]]]))
  
negative.code: ;; It will return a chunked response to the client with "HELLO WORLD" string.
  ----
  
  One of the best parts of the reactive-streams is that them comes with back pressure
  support out of the box and it native support in ratpack makes them a great glue
  abstraction for similar async primitives. In fact, the support for all stream like
  primitives explained until now are implemented in terms of _reactive-streams_
  