drawpile: 0.8.4-1~getdeb1

  * New upstream version
     * Bugfix: stop scene rectangle from growing when lines or annotations
     are dragged beyond boundaries
     * Color picker: right mouse click now picks background color
     * Improved interval recording: time between intervals is no longer
     accumulated
     * New feature: Laser pointer tool
     * New feature: constrain rectangle and line drawing to squares and
     straight lines with shift key
     * New feature: Ellipse drawing tool
     * New feature: Preview stroke style is now selectable