title: Where does Sublime Text 2 store editing information?
body: <p>When I perform these steps:</p>
  
  <ol>
  <li>Open an existing file in Sublime Text 2.</li>
  <li>Type in arbitrary text at an arbitrary place in the file.</li>
  <li>Close Sublime Text 2.</li>
  </ol>
  
  <p>Note, I have not saved the changes.</p>
  
  <ol>
  <li>Open Sublime Text 2.</li>
  <li>Open the file from step 1.</li>
  </ol>
  
  <p>I see changes in the file. But if I view the file in, let's say, Notepad, I see no changes.</p>
  
  <p>Where does Sublime Text 2 keep the changes made to files?</p>