title: is it possible to insert a line break in this tooltip?
body: <p>i have a pretty map of the US:</p>
  
  <p><a href="http://upload.wikimedia.org/wikipedia/commons/a/a5/Map_of_USA_with_state_names.svg" rel="nofollow noreferrer">http://upload.wikimedia.org/wikipedia/commons/a/a5/Map_of_USA_with_state_names.svg</a></p>
  
  <p>i would like to implement a tooltip with multiline functionality such as here over the red square:</p>
  
  <p><a href="http://www.carto.net/papers/svg/gui/tooltips/" rel="nofollow noreferrer">http://www.carto.net/papers/svg/gui/tooltips/</a></p>
  
  <p>please help me get started on this. i will be offering a maximum bounty on this.</p>