v1.27 - 2008.10.07 by migius - exclude Stani's DXF-Library to extern module - add "hidden mode" substitut: back-faces removal - add support for mesh ->POLYFACE - optimized code for "Flat" procedure - modif FACE class for r12 - add mesh-polygon -> Bezier-curve converter (Yorik's code) - add support for curves ->POLYLINEs - add "3d-View to Flat" - geometry projection to XY-plane