title: some solution files still have the VS10 icon
body: <p>I have installed Visual Studio 2012 (aka 11) and uninstalled 2010.  However I noticed that solution (.sln) files show an icon that has a little "10" on it while others have "11", with no seeming pattern.  They are all solutions that I started out using in 2010 but have since worked on in 11.  Why is this?</p>
  
  <p><strong>EDIT:</strong>
  I noticed that I if I open the .sln file in a text editor, the "10" icon corresponds to:</p>
  
  <pre><code>Microsoft Visual Studio Solution File, Format Version 11.00
  </code></pre>
  
  <p>And the "11" icon corresponds to:</p>
  
  <pre><code>Microsoft Visual Studio Solution File, Format Version 12.00
  </code></pre>
  
  <p>Yes you read that right (!!!)</p>
  
  <p><strong>EDIT:</strong>
  What if I change the .sln file in the text editor from 11.00 to 12.00?  Is that recommended?</p>