Sharp/Smooth Splines

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"For those people doing work with splines, this plugin allows you to split multiple splines (make them have sharp corners) at wherever you have selected points, or, if the selection is multiple splines, it with smooth across their joins. This does away with the faffing of splitting splines using the standard LW method, and means you can put this dual sharpening/smoothing function on ctrl-s (the standard LW hotkey for just smoothing)"