title: is there any way to "logout with all devices" from dropbox API v2
body: <p>I am using Dropbox API v2. User of my app wants to logout from Dropbox with all his devices. I think this is equivalent to revoke all access tokens for my app.</p>
  
  <p>I know how to revoke a known access token (and my app provides a logout which does this).
  I also know that the user can unlink my app from his dropbox on the dropbox website (but this is a bit cumbersome).</p>
  
  <p>For convenience, I would like to add a feature allowing him to do this from my app.</p>
  
  <p>Another reason is, that processing of the callback-URL may fail. Then the generated access token remains valid, even if it is never used.</p>
  
  <p>As Dropbox access tokens never expire, users might feel bad if there are unknown or unused access tokens flying around.</p>