title: Entity framework 6.0.1 -> 6.1 update, project references say "6.0.0.0"
body: <p>I've updated my solution to use EF 6.1 using <code>Library Package Manager</code></p>
  
  <p>Next I've reviewed the list of pending changes and EF reference in each project resembles these lines:</p>
  
  <pre><code>&lt;Reference Include="EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089, processorArchitecture=MSIL"&gt;
      &lt;SpecificVersion&gt;False&lt;/SpecificVersion&gt;
      &lt;HintPath&gt;..\..\packages\EntityFramework.6.1.0\lib\net45\EntityFramework.dll&lt;/HintPath&gt;
  &lt;/Reference&gt;
  </code></pre>
  
  <p>Why does it specifies <code>Version=6.0.0.0</code> in fully qualified name?</p>