[Inkscape-devel] NEW: on-canvas rounding and randomization

* More on-canvas star interactivity: The Roundedness and Randomization fields in the star controls panel are precise, but not very convenient. Now you can round a star interactively by Shift+dragging a star handle on the canvas, or adjust a star's randomization level by Alt+dragging a handle. Correspondingly, Shift+click on a handle zeroes roundedness, Alt+click removes randomization.