graphein: Integrating VARKON

1. Integrating Varkon

literate programming with noweb and Varkon MBS.

use noweave -n for full doc chunk passthru.

set up VARKON_ROOT; do actual VARKON coding from within graphein;

Question: do we copy PLT, ps, ps -> png images to graphein hierarchy, or link out to them and lose Subversion integrity?

probably just save screen capture pngs locally

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