Graph-Simple
============

See Graph::Simple under LIMITATIONS for some hot topics. Also:

* _trace_path()
* find place for nodes by walking in increasing circles around the source
  node
* find place for nodes without incoming edges by placing them in the
  leftmost column
* as_txt(): output attributes
* parser: deal with " [ node ] { color: red; }", too
* parser: deal with " [ node ], [node2], [node3]"

