gnowledge/gstudio — pull request #287 by kedar2a (2014-03-19 11:58:30+00:00)
Title: Added rectangles and Ellipse to graph nodes. Code modified to view saved nodegraph.svg in image-viewer.

**Now graph will appear as follows** :
- Main node will appear as central ellipse with dark color.
- Nodes related to central main node will appear as ellipse with faint color.
- Rest nodes will appear in rectangle.

**Also now saved graphname.svg can be viewed in (SVG format supported) image-viewer with all it's elements**.
- Previously redundant svg arrow elements was getting produced.
- That's why downloaded/saved svg file was not showing arrows in Image Viewer( not Inkscape ).
- Now d3 code is modified to produce correct and standardized svg data.