title: how to get "green" (i.e. nothing to commit) on the entire solution in VisualSVN
body: <p>I'm using VisualSVN and VS</p>
  
  <p>All projects in my Solution has "green" circle meaning that there is nothing to commit
  However entire solution has "yellow" circle.</p>
  
  <p>tortoisesvn says that only one <strong>folder</strong> is changed, the status of this folder is "modified (property change only)"</p>
  
  <p>It also says that "Working base" of this folder is empty and "Working copy" is:</p>
  
  <pre><code>*.suo
  *.ncb
  *.sdf
  *.opensdf
  ipch
  *.user
  _ReSharper.*
  Myproject
  </code></pre>
  
  <p>I don't understand what's going on.
  How is that possible that <strong>folder itself</strong> has some content that can be changed and compared and commited?
  I mean folder is just a container for files and other folders, isn't it?</p>
  
  <p>Should I commit this change? Should it be versioned? What is that?</p>
  
  <p>Thanks</p>