+ fixes #0001874: Scripted constraints not evaluated correctly
Merge branch 'master' of ssh://git.code.sf.net/p/free-cad/code
SVG export: minor improvements and bugfixes

export Names as "id" attributes and Lables to "title" elements.
avoid duplicate path names in SVG export
handle faces with holes in SVG export
sort the edges in given wires using fixWire()
DRAWEXE export: minor bugfix
Arch: Fixed Ifc explorer to work with recent ifcopenshell