OpenLayers.MouseListener.EditingListener.PolygonHoleCutter

  This mouseListener allows the user to create an interior ring into an existing polygon. As a result, the polygon is drawn with a hole.
  

* Constructor
  OpenLayers.MouseListener.EditingListener.PolygonHoleCutter() -- Creates a new control.

* Methods
  mouseDblClick -- none -- This event takes place when a dblClick event occurs on the map. 
  mouseDown -- none -- This event takes place when a mouseDown event occurs on the map.
  mouseMove -- none -- This event takes place when a mouseMove event occurs on the map. If mouse is down, the user can pan the map.
  mouseUp -- none -- This event takes place when a mouseUp event occurs on the map. If user clicked on an existing polygon, it is hilighted, and next clicks allows to draw the ring.
  keyDown -- none -- This event takes place when a keyDown event occurs on the map.
  _finalizeGeometry -- none -- this method is called to update the edited geometry in the selected vector layer
  _eraseTmpElements -- none -- this method is called to erase all the temporary elements drawn in the interface during the creation of the geometry
  All other methods are inherited from {OpenLayers.MouseListener.EditingListener}

* Options
  createIsland -- {Boolean} -- if true, a new feature is created as an island.