title: How to retrieve a list of Changesets (or work items) that were checked-in between builds?
body: <p>I need a list of changesets (or Work Items) that were made betweend builds (I can label builds if its necessary).
  I need that list for our test team (and to publish 'changelist').</p>
  
  <p>Is MSBuild task able to retrieve that list and save as file (then I can process that list further.<br>
  Or maybe I need to connect to TFS from C# code and retrieve that list myself (I'm familiar with retrieving WorkItems in C#).</p>