Add .php_cs file

- Add a configuration file for PHP Coding Standards Fixer.
- Running `php-cs-fixer fix` will now automatically fix any coding standards violations.

http://cs.sensiolabs.org

Author: simplechris

.gitignore

@@ -2,6 +2,7 @@
 composer.lock
 vendor/
 composer.phar
+.php_cs.cache
 
 #editor related
 .idea
@@ -17,4 +18,4 @@ ehthumbs.db
 Thumbs.db
 
 #generator related
-generator/*
+generator/*

.php_cs

@@ -0,0 +1,16 @@
+<?php
+
+function php_cs() {
+    $finder = Symfony\CS\Finder\DefaultFinder::create()
+        ->exclude('benchmarks')
+        ->exclude('docs')
+        ->exclude('util')
+        ->in(__DIR__);
+
+    return Symfony\CS\Config\Config::create()
+        ->setUsingCache(true)
+        ->level(Symfony\CS\FixerInterface::PSR2_LEVEL)
+        ->finder($finder);
+}
+
+return php_cs();