anchor.diff:  - message/text signing (high level interface)
   - signature & authentication (mac & digital signature)
   - encryption (block & stream ciphers)
  -- key derivartion functions (kdf)
  +- key derivation functions (kdf)
   
   
   == Backward compatibility.
   
  -Since version 0.3.0, buddy is splitted in four modules for improve modularity
  -of the application and allow to people include only wanted parts of buddy
  -instead of one monolitic library.
  +Since version 0.3.0, buddy is split into four modules for improved modularity
  +of the application and to allow people to include only wanted parts of buddy
  +instead of one monolithic library.
   
  -Each module has it own functionality and its own documentation. This document/page
  -only serves as introduction to the library and the content of index.
  +Each module has its own functionality and its own documentation. This document/page
  +only serves as an introduction to the library and the content of index.
   
  -If you are happy with the monolitic version of buddy, you can emulate them including
  +If you are happy with the monolithic version of buddy, you can emulate it by including
   all buddy submodules packages like this:
   
   [source,clojure]
  
positive.code: [buddy/buddy-auth "x.y.z"]
  ----
  
  See the concrete instalation instructions and version number on specific
  module documentation.
  
  An other option is including a meta package (that includes all them in one):
  
  [source, clojure]
  ----
  
negative.code: 
  === buddy-core
  
  Cryptographyc API.
  
  With that list of features:
  
  - secure hash functions (digest)
  - signature & authentication (mac & digital signature)
  - encryption (block & stream ciphers)
  - key derivation functions (kdf)
  
  link:http://funcool.github.io/buddy-core/latest/[Documentation]
  
  