title: MS Project shows incorrect start & finish dates after importing MSPDI created by MPXJ
body: <p>I've created an app based on MpxjCreate sample from MPXJ library distribution.
  I create several task, some of them with child tasks, &amp; use <code>Task.setStart()</code> / <code>Task.setFinish()</code> for setting task start/finish dates. 
  After I write resulting file using <code>MSPDIWriter</code>, following tags can be seen in resulting xml file inside <code>&lt;Task&gt;</code> tag:</p>
  
  <pre><code>&lt;Start&gt;2013-01-01T00:00:00&lt;/Start&gt;
  &lt;Finish&gt;2016-12-31T00:00:00&lt;/Finish&gt;
  </code></pre>
  
  <p>But when I open file using MS Project 2007, it seems to ignore given values &amp; uses <code>&lt;StartDate&gt;</code> value from <code>&lt;Project&gt;</code> tag, which results in series of tasks with 1 day duration.</p>
  
  <p>Please tell, what should be done to use <code>&lt;Task&gt;-&gt;&lt;Start&gt;/&lt;Finish&gt;</code> tag values for MS Project task start/end date without any "intellectual" calculation?</p>