[zen-49] Correct import statements across framework

- Ran a script that would create multiple import statements out of multi-line
  import statements, and which would sort all import statements in alphabetic
  order. Script is at https://gist.github.com/3079222 and was run by dropping
  into the library/Zend folder and typing (in zsh)
  "for file in **/*.php;do php /path/to/replace-uses.php $file; done"

src/ClassFileLocator.php

@@ -11,11 +11,11 @@
 namespace Zend\File;
 
 // import SPL classes/interfaces into local scope
-use DirectoryIterator,
-    FilterIterator,
-    RecursiveIterator,
-    RecursiveDirectoryIterator,
-    RecursiveIteratorIterator;
+use DirectoryIterator;
+use FilterIterator;
+use RecursiveDirectoryIterator;
+use RecursiveIterator;
+use RecursiveIteratorIterator;
 
 /**
  * Locate files containing PHP classes, interfaces, abstracts or traits

src/Transfer/Adapter/AbstractAdapter.php

@@ -10,13 +10,13 @@
 
 namespace Zend\File\Transfer\Adapter;
 
-use Zend\File\Transfer,
-    Zend\File\Transfer\Exception,
-    Zend\Filter,
-    Zend\Filter\Exception as FilterException,
-    Zend\Loader,
-    Zend\I18n\Translator\Translator,
-    Zend\Validator;
+use Zend\File\Transfer;
+use Zend\File\Transfer\Exception;
+use Zend\Filter;
+use Zend\Filter\Exception as FilterException;
+use Zend\I18n\Translator\Translator;
+use Zend\Loader;
+use Zend\Validator;
 
 /**
  * Abstract class for file transfers (Downloads and Uploads)

src/Transfer/Adapter/Http.php

@@ -10,10 +10,10 @@
 
 namespace Zend\File\Transfer\Adapter;
 
-use Zend\File\Transfer,
-    Zend\File\Transfer\Exception,
-    Zend\ProgressBar,
-    Zend\ProgressBar\Adapter;
+use Zend\File\Transfer;
+use Zend\File\Transfer\Exception;
+use Zend\ProgressBar;
+use Zend\ProgressBar\Adapter;
 
 /**
  * File transfer adapter class for the HTTP protocol