Unfortunatelly, I have to write a common comment for check-in of many files in SUPERVGUI. Two main things were done during this edition:
1) improvements that were implemented in cvs-PAL were merged here. They mainly concerned Python editor improvements ("Load from file" works with Python functions with blank lines, etc.) and some minor (N4) bugs in SUPERVGUI fixed by SAK.
2) removal of all unused classes, so called non-canvas classes. Only Canvas-bases GUI entities (Node, Port, Link) are left in SUPERVGUI, and the other classes, used in SUPERVISOR previously, are permanentally removed. 2 view modes were removed from SUPERVGUI_Def.h: TABLE and GRAPH. CANVASTABLE, CANVAS, and CONTROLFLOW are now the only implemented modes of dataflow presentation.