- GetBoundingBox has a new optionnal parameter: Bool_t angle. When it is true

  the bounding is computed taking care of the text angle. When it is false
  (default), the horizontal bounding box is computed.


git-svn-id: http://root.cern.ch/svn/root/trunk@17474 27541ba8-7e3a-0410-8455-c3a389f83636