Added autoloading definition to composer

Author: fprochazka

composer.json

@@ -10,5 +10,8 @@
 	"require": {
 		"symfony/css-selector": "~2.5",
 		"sabberworm/php-css-parser": "6.0.*"
+	},
+	"autoload": {
+		"classmap": ["src/"]
 	}
 }

examples/run_example.php

@@ -1,5 +1,5 @@
 <?php
-require __DIR__ . '/../src/Northys/CssInliner/CssInliner.php';
+
 require __DIR__ . '/../vendor/autoload.php';
 
 $inliner = new Northys\CSSInliner;