anchor.diff:  (def tokens {:2f904e245c1f5 :admin
                :45c1f5e3f05d0 :foouser})
   
  -;; Define a authfn, function with the responsability
  +;; Define a authfn, function with the responsibility
   ;; to authenticate the incoming token and return an
   ;; identity instance
   
  
positive.code: ----
  
  When, "Token 2f904e245c1f5" is received in the "Authorization" header, *my-authfn* will be
  executed with token as value. The responsability of *my-authfn* is to return a valid user
  or nil.
  
  If you are so inclined, you may use a different name for your token, using the **token-name** optional
  
negative.code:     (response "Hello Anonymous")))
  ----
  
  Http Basic requires a function with the responsibility of
  identifying the incoming request called *authfn*.
  
  The *authfn* function should accept a _request_ as the first parameter
  