title: Change standard position of tooltip if hovered/active in angular
body: <p>Is it possible to change the standard positioning of a tooltip?</p>
  
  <p>In my case, when using "bottom" I would like the tooltip to be a bit higher within the area which activated the toolip.</p>
  
  <p>I searched along and did not find the part within bootstrap or bootstrap-templates where this values are set.</p>
  
  <p>I guess I have to use the $tooltipProvider to change behaviour.</p>
  
  <p>Please see my plunkr: <a href="http://plnkr.co/edit/neSprkPssboCiHzM4uE2?p=catalogue" rel="nofollow">http://plnkr.co/edit/neSprkPssboCiHzM4uE2?p=catalogue</a>
  As you can see, the tooltip shows up at the wrong place.</p>