Update documentation

* Make the 1.2.2 history entry less technical.

Author: Humdinger

documentation/User Documentation.html

@@ -222,9 +222,9 @@ <h2>
 </ul>
 <p><b>1.2.2</b> - <i>2017-08-03</i></p>
 <ul>
-<li>Improved Drop Zone with a BShelf's solid background.</li>
+<li>Bug fix to prevent a rare crash</li>
 <li>Improved MIME type guessing</li>
-<li>Fixed a crashing bug.</li>
+<li>Improved drop-zone rendering</li>
 <li>Added Catalan, Czech, Spanish, Friulian, Indonesian, Romanian, Swedish and Turkish localization.</li>
 </ul>
 <p><b>1.2.1</b> - <i>2017-10-08</i></p>