Update box.json

* Add "vendor/composer", "vendor/symfony/dependency-injection" and "vendor/twig" to directory section
* Remove map section
* Add "main": "bin/console",
* Set "stub": true
* add "vendor/autoload.php" to files section
Update dependecies to latest drupal release
Update bin/console

* Remove Drupal autoloader
* Require console.php using relative path
Update  bin/console.php
* Add Console autoloader
* Add Drupal autoloader
* Set application booted if Drupal instalation found on current working directory
* Move helpers to an array
Register commands only if drupal is booted
Update src/Console/Application.php

* Add booted property
* Update version
Remove unused use statement
Merge pull request #256 from jmolivas/issue-255-allow-running-console-globally

Issue #255 allow running console globally