noted that all current NeXus base classes are now recognized (was missing some such as NXcollection)

git-svn-id: https://subversion.xor.aps.anl.gov/synApps/areaDetector/trunk@13412 dc6c5ff5-0b8b-c028-a01f-ffb33f00fc8b

documentation/areaDetectorReleaseNotes.html

@@ -163,6 +163,8 @@
           for initially doing this.</li>
         <li>NDFileNexus: Added Schematron file (<tt>iocBoot/template.sch</tt>) to allow syntax
           validation of a NeXus template XML file.</li>
+        <li>NDFileNexus: Now recognizes all current NeXus base class names 
+          (was missing some newer base classes such as <tt>NXcollection</tt>).</li>
       </ul>
     </li>
     <li>Viewers