Removing PHPCI's custom autoloader in favour of Composer autoloader.

Closes #661

bootstrap.php

@@ -16,23 +16,6 @@ if (empty($timezone)) {
     date_default_timezone_set('UTC');
 }
 
-// Set up a basic autoloader for PHPCI:
-$autoload = function ($class) {
-    $file = str_replace(array('\\', '_'), '/', $class);
-    $file .= '.php';
-
-    if (substr($file, 0, 1) == '/') {
-        $file = substr($file, 1);
-    }
-
-    if (is_file(dirname(__FILE__) . '/' . $file)) {
-        include(dirname(__FILE__) . '/' . $file);
-        return;
-    }
-};
-
-spl_autoload_register($autoload, true, true);
-
 // If the PHPCI config file is not where we expect it, try looking in
 // env for an alternative config path.
 $configFile = dirname(__FILE__) . '/PHPCI/config.yml';