applied sf3 directory structure

.gitignore

@@ -1,11 +1,19 @@
-/app/bootstrap.php.cache
-/app/cache/*
-!app/cache/.gitkeep
+/bin/*
+!/bin/console
+!/bin/symfony_requirements
 /app/config/parameters.yml
-/app/logs/*
-!app/logs/.gitkeep
-/app/phpunit.xml
-/bin/
-/composer.phar
+/build/
+/phpunit.xml
+/var/*
+!/var/cache
+/var/cache/*
+!var/cache/.gitkeep
+!/var/logs
+/var/logs/*
+!var/logs/.gitkeep
+!/var/sessions
+/var/sessions/*
+!var/sessions/.gitkeep
+!var/SymfonyRequirements.php
 /vendor/
 /web/bundles/

app/AppKernel.php

@@ -28,6 +28,18 @@ public function registerBundles()
         return $bundles;
     }
 
+    public function getRootDir()
+    {
+        return __DIR__;
+    }
+    public function getCacheDir()
+    {
+        return dirname(__DIR__).'/var/cache/'.$this->getEnvironment();
+    }
+    public function getLogDir()
+    {
+        return dirname(__DIR__).'/var/logs';
+    }
     public function registerContainerConfiguration(LoaderInterface $loader)
     {
         $loader->load($this->getRootDir().'/config/config_'.$this->getEnvironment().'.yml');