title: How and where save uploaded files with ng-flow?
body: <p>First of all, I use <a href="https://github.com/flowjs/ng-flow">ng-flow</a> (html5 file upload extension on angular.js framework)</p>
  
  <p>My files are uploaded, I log the event in console.
  But I don't understand where and how to save them.</p>
  
  <p>Here is my html code, upload is called.</p>
  
  <pre><code>&lt;div flow-init flow-files-submitted="$flow.upload()"&gt;   
  &lt;div class="drop" flow-drop ng-class="dropClass"&gt;
      &lt;span class="btn btn-default" flow-btn&gt;Upload File&lt;/span&gt;
      &lt;span class="btn btn-default" flow-btn flow-directory ng-show="$flow.supportDirectory"&gt;Upload Folder&lt;/span&gt;
      &lt;b&gt;OR&lt;/b&gt;
      Drag And Drop your file here
  &lt;/div&gt;
  </code></pre>
  
  <p>Here is my config</p>
  
  <pre><code>app.config(['flowFactoryProvider', function (flowFactoryProvider) {
    flowFactoryProvider.defaults = {
      target: 'upload.php',
      permanentErrors: [404, 500, 501],
      maxChunkRetries: 1,
      chunkRetryInterval: 5000,
      simultaneousUploads: 4,
      singleFile: true
    };
    flowFactoryProvider.on('catchAll', function (event) {
      console.log('catchAll', arguments);
    });
    // Can be used with different implementations of Flow.js
    // flowFactoryProvider.factory = fustyFlowFactory;
  }]);
  </code></pre>
  
  <p><code>upload.php</code> is called, and <code>$_GET</code> is full with data,</p>
  
  <pre><code>&lt;script&gt;alert('alert' + array(8) {
    ["flowChunkNumber"]=&gt;
    string(1) "1"
    ["flowChunkSize"]=&gt;
    string(7) "1048576"
    ["flowCurrentChunkSize"]=&gt;
    string(6) "807855"
    ["flowTotalSize"]=&gt;
    string(6) "807855"
    ["flowIdentifier"]=&gt;
    string(11) "807855-3png"
    ["flowFilename"]=&gt;
    string(5) "3.png"
    ["flowRelativePath"]=&gt;
    string(5) "3.png"
    ["flowTotalChunks"]=&gt;
    string(1) "1"
  }
  )&lt;/script&gt;
  </code></pre>
  
  <p>but when I'm here what I have to do to save my files?</p>
  
  <p>I tried to do <code>move_uploaded_file()</code> on <code>flowFilename</code> and <code>flowRelativePath</code> but nothing append.</p>
  
  <p>I'm new in js.</p>
  
  <p>Thank you.</p>