[DEV] Refactor and add comments

Author: rjcorflo

app/bootstrap.php

@@ -1,9 +1,19 @@
 <?php
-
+/**
+ * Bootstrap file.
+ *
+ * Require composer autolader.
+ * Create PSR-11 compliant container and return it.
+ */
 set_time_limit(0);
 
 require __DIR__ . '/../vendor/autoload.php';
 
 $containerBuilder = new DI\ContainerBuilder();
 $containerBuilder->addDefinitions(__DIR__ . '/config/container.php');
-return $containerBuilder->build();
+
+/**
+ * @var \Psr\Container\ContainerInterface $container
+ */
+$container = $containerBuilder->build();
+return $container;

app/console.php

@@ -5,5 +5,5 @@
  */
 $container = require __DIR__ . '/bootstrap.php';
 
-$application = $container->get('app');
-$application->run();
+
+$container->get('app')->run();