Restore Zend\File\Transfer

- A user was able to display use cases for Zend\File\Transfer that were indeed
  working on the master branch prior to the file upload rewrite provided by
  @cgmartin
- This commit restores the files from master, and provides fixes/updates/etc. to
  ensure they work against the develop branch for 2.1.0.

src/Transfer/Adapter/FilterPluginManager.php

@@ -0,0 +1,38 @@
+<?php
+/**
+ * Zend Framework (http://framework.zend.com/)
+ *
+ * @link      http://github.com/zendframework/zf2 for the canonical source repository
+ * @copyright Copyright (c) 2005-2013 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license   http://framework.zend.com/license/new-bsd New BSD License
+ * @package   Zend_File_Transfer
+ */
+
+namespace Zend\File\Transfer\Adapter;
+
+use Zend\Filter\FilterPluginManager as BaseManager;
+
+/**
+ * Plugin manager implementation for the filter chain.
+ *
+ * Enforces that filters retrieved are instances of
+ * FilterInterface. Additionally, it registers a number of default filters.
+ *
+ * @category   Zend
+ * @package    Zend_File_Transfer
+ */
+class FilterPluginManager extends BaseManager
+{
+    /**
+     * Default set of filters
+     *
+     * @var array
+     */
+    protected $aliases = array(
+        'decrypt'   =>'filedecrypt',
+        'encrypt'   =>'fileencrypt',
+        'lowercase' =>'filelowercase',
+        'rename'    =>'filerename',
+        'uppercase' =>'fileuppercase',
+    );
+}