2014-11-23-11.54.46: src/lib/x-kit/widget/gui/guiboss-types.pkg: Running_Gui: Add fields to track per-running-gui imps (so that we can remove them from the matching global indices at gui shutdown), viz:  gadget_imps: Gadget_Imps, bounce_imps: Bounce_Imps, canvas_imps: Canvas_Imps, packed_imps: Packed_Imps.