title: Open URL in new tab from IPython Notebook/Jupyter cell
body: <p>Is there a way to cause a programmatically generated url to open in a new browser tab or window from an IPython notebook cell?</p>
  
  <p>Upon execution of the notebook cell the result should be the opening of a new tab or window pointing to the generated link.</p>
  
  <p>NOTE: When I just return an IPython.core.display.HTML instance with a hyperlink the link is broken.  If the url is copied and pasted into a browser window it is valid.</p>