Added BeSimple_Memcached_Memcached class

lib/BeSimple/Memcached/Debug/Traceable.php

@@ -9,7 +9,7 @@ class BeSimple_Memcached_Debug_Traceable implements BeSimple_Memcached_Traceable
     public function __construct($memcached)
     {
         if (!$memcached instanceof Memcached && !$memcached instanceof BeSimple_Memcached_MemcachedInterface) {
-            throw new InvalidArgumentException('The memcached must be an instance of Memcached or BeSimple_Memcached_MemcachedInterface');
+            throw new InvalidArgumentException('The Memcached must be an instance of Memcached or BeSimple_Memcached_MemcachedInterface');
         }
 
         $this->memcached = $memcached;

lib/BeSimple/Memcached/Memcached.php

@@ -0,0 +1,5 @@
+<?php
+
+class BeSimple_Memcached_Memcached extends Memcached implements BeSimple_Memcached_MemcachedInterface
+{
+}

test/BeSimple/Memcached/Tests/MemcachedTest.php

@@ -0,0 +1,12 @@
+<?php
+
+class BeSimple_Memcached_Tests_MemcachedTest extends PHPUnit_Framework_TestCase
+{
+    public function testMemcachedInstance()
+    {
+        $memcached = new BeSimple_Memcached_Memcached();
+
+        $this->assertInstanceOf('Memcached', $memcached);
+        $this->assertInstanceOf('BeSimple_Memcached_MemcachedInterface', $memcached);
+    }
+}