Contao 4 refactoring

.editorconfig

@@ -0,0 +1,26 @@
+# editorconfig.org
+
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+indent_size = 2
+indent_style = space
+insert_final_newline = true
+trim_trailing_whitespace = true
+
+[*.md]
+trim_trailing_whitespace = false
+
+[*.py]
+indent_size = 4
+
+[*.yml]
+indent_size = 4
+
+[*.php]
+indent_size = 4
+
+[*.json]
+indent_size = 4

.gitignore

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+# IDE & OS
+.idea/
+.DS_Store
+
+# Project
+vendor
+composer.phar
+composer.lock
+phpunit.xml
+Tests/Controller/App/*/
+Tests/Controller/App/sqlite.db.cache

README.md

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+Contao Discourse SSO Bundle
+=============================
+
+Contao Discourse SSO Bundle for Symfony
+
+Installation
+------------
+
+### Step 1: Download the Bundle
+
+Open a command console, enter your project directory and execute the
+following command to download the latest stable version of this bundle:
+
+```bash
+$ composer require craffft/contao-discourse "~2.0"
+```
+
+This command requires you to have Composer installed globally, as explained
+in the [installation chapter](https://getcomposer.org/doc/00-intro.md)
+of the Composer documentation.
+
+### Step 2: Enable the Bundle
+
+Then, enable the bundle by adding it to the list of registered bundles
+in the `app/AppKernel.php` file of your project:
+
+```php
+<?php
+// app/AppKernel.php
+
+// ...
+class AppKernel extends Kernel
+{
+    public function registerBundles()
+    {
+        $bundles = array(
+            // ...
+
+            new Craffft\ContaoDiscourseSSOBundle\CraffftContaoDiscourseSSOBundle(),
+        );
+
+        // ...
+    }
+
+    // ...
+}
+```