anchor.diff:  - if `parse` function returns nil, `authenticate` function is ignored and user handler is
     called directly.
   - `authenticate` also can return a valid response, in these case it has same behavior that
  +
  +
     with `parse` function.
   =========================
   
  
positive.code: 
  NOTE: `make-hash` and `verify` also accept salt for using salted hashes.
  
  In previous example we use *pbkdf2* hasher but _budd_ also support many other
  hasher algorithm by default. This is a complete list of implemented hashers:
  
  - `:pbkdf2` (alias for `:pbkdf2-sha1`)
  
negative.code: 
  - Open new issue with new feature purpose.
  - If it is accepted, follow same steps as "bugfix".
  
  
  FAQ
  ---
  