removed duplicate entry in .qrc
fixing hull parsing
Changes for DXF LWPOLYLINE

        modified:   src/Mod/Draft/importDXF.py
	modified:   src/Mod/OpenSCAD/OpenSCADUtils.py
	modified:   src/Mod/OpenSCAD/OpenSCAD_rc.py
	modified:   src/Mod/OpenSCAD/importCSG.py
Make DXF export support for LwPolyline more compatible
	modified:   src/Mod/Draft/importDXF.py