added redis contrib module

sites/all/modules/contrib/dev/redis/redis.autoload.inc

@@ -0,0 +1,25 @@
+<?php
+
+/**
+ * @file
+ * Redis module autoloader.
+ */
+
+/**
+ * Autoloader micro optimization, work with constant as much as we can.
+ */
+define('REDIS_ROOT', dirname(__FILE__) . '/lib');
+
+/**
+ * Redis module specific autoloader, compatible with spl_register_autoload().
+ */
+function redis_autoload($class_name) {
+  if ('Redis' === substr($class_name, 0, 5)) {
+    $filename = REDIS_ROOT . '/' . str_replace('_', '/', $class_name) . '.php';
+    return @include_once $filename;
+  }
+  return FALSE;
+}
+
+// Register our custom autoloader.
+spl_autoload_register('redis_autoload');