Cps whitelist 'type' property of all MOM Nodes.
make the master rule without @namespace
Refactoring for more stable imports and better handling of edge cases.

Return polar coordinates, be smart to always find directions for control.

Remove old 'getStrokeTerminals' method.

New errors Import and ImportPenstroke.

Make SegementPoint a subclass of Vector.

Rewrite/restructure StrokeContour to have a better separation of the
tasks handled here and improve the situation for future rewrites.

New cps-rules creation, a master is not in it's own @namespace anymore.

Add/remove parameters to reflect what is currently used.

Simpler control point finding.

Positioning of off-curve points is now completely in CPS.

better structured skeleton drawing code
Merge pull request #239 from graphicore/improve-import-export-details

Improve import export details