Arun - 0.41-alpha pre-release version

List of changes:

• v0.41-alpha - Changes Made:

      1) The Arun Package splitted in two projects
  
    	* arun-core at https://github.com/afonzeca/arun-core
    	* arun framework (boilerplate) at https://github.com/afonzeca/arun
  
      2) Arun-core API docs (API documentation)
  
      3) Published on 2018-11-06
  
      4) Arun microframework (this repository) has been updated
      for external core support (changes to container/core.php,
      composer.json and the whole documentation) 
  
      5) All "core" code removed from this repository and
      republished on arun-core repository (refer to point 1)