Added unregisterAutoloader($autoloaderClass) method

- Allow unregistering a single autoloader at a time

src/AutoloaderFactory.php

@@ -107,7 +107,6 @@ public static function getRegisteredAutoloaders()
         return static::$loaders;
     }
 
-
     /**
      * Retrieves an autoloader by class name 
      * 
@@ -138,6 +137,24 @@ public static function unregisterAutoloaders()
         }
     }
 
+    /**
+     * Unregister a single autoloader by class name
+     * 
+     * @param  string $autoloaderClass 
+     * @return bool
+     */
+    public static function unregisterAutoloader($autoloaderClass)
+    {
+        if (!isset(static::$loaders[$autoloaderClass])) {
+            return false;
+        }
+
+        $autoloader = static::$loaders[$autoloaderClass];
+        spl_autoload_unregister(array($autoloader, 'autoload'));
+        unset(static::$loaders[$autoloaderClass]);
+        return true;
+    }
+
     /**
      * Get an instance of the standard autoloader
      *

test/AutoloaderFactoryTest.php

@@ -116,6 +116,19 @@ public function testCanUnregisterAutoloaders()
         $this->assertEquals(0, count(AutoloaderFactory::getRegisteredAutoloaders()));
     }
 
+    public function testCanUnregisterAutoloadersByClassName()
+    {
+        AutoloaderFactory::factory(array(
+            'Zend\Loader\StandardAutoloader' => array(
+                'namespaces' => array(
+                    'TestNamespace' => __DIR__ . '/TestAsset/TestNamespace',
+                ),
+            ),
+        ));
+        AutoloaderFactory::unregisterAutoloader('Zend\Loader\StandardAutoloader');
+        $this->assertEquals(0, count(AutoloaderFactory::getRegisteredAutoloaders()));
+    }
+
     public function testCanGetValidRegisteredAutoloader()
     {
         AutoloaderFactory::factory(array(