Merge pull request #39 from nortikin/master

sync
Updated AdaptivePolygon, CenterspolsNode CrossSection Image Viewertext
to Svget/SvSet
Last nodes updated
Changed in util to stop using old interface.
Socket label in node_s uses new function:
Updated DistancePP
Fixes, node_s, util and Hilbert
Merge pull request #40 from nortikin/master

Update node_Script.py
Fixes in util.py
Merge pull request #91 from ly29/master

All nodes use Svget and Svset