Draft: Fixed autoconversion of bsplines to circles in DXF export
+ 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
Path module: First commit

* Path.Command() object
Temporarily removed Gui from cmake
Path: Added Path object
Added Path Feature
Path: extended the command object
Path: extended path py object, enable coin representation in view provider
Path: added Tool and Tooltable objects
minor changes to names
added a few more tool definitions
removed whitespaces
added more tools
added a few more tools
More uniform caps system for enums, and added more materials
Path: enabled reading & writing of Path features