[2.1] Form File Upload refactor

CHANGELOG.md

@@ -5,6 +5,19 @@
 - The initializer for ServiceManagerAwareInterface was removed to prevent
   confusion between ServiceManagerAwareInterface and
   ServiceLocatorAwareInterface, and to promote using the latter interface.
+- File upload functionality has been rewritten and moved out of Zend\File
+  into Zend\Form and Zend\InputFilter. File elements are now
+  specified and handled with Zend\Form just like any other form element.
+- File upload progress functionality has been moved out of Zend\File into
+  specific classes under Zend\ProgressBar\Upload based on the type of
+  handler (APC, UploadProgress module, and Session progress in PHP 5.4).
+- New form elements under Zend\Form\Element\File for the various upload
+  progress identifiers.
+- New Zend\Filter\File\RenameUpload filter for securely moving uploaded
+  files.
+- New Zend\Mvc\Controller\Plugin\FilePostRedirectGet plugin for file
+  upload forms.
+
 
 ## 2.0.2: