Expand comment on what is expected in the graph for the various pack functions to work.
Add function for finding connected components using both edges and clusters;
remove unused code;
combine dfs functions, using structure of functions to tailor semantics.
Modify dot to using packing rather than the built-in component handling, which
places all the components on a single row;
as a side-effect, parameterize dot_layout to distinguish between the absolute root graph
(for various parameters) and the local root used for layout, which will hold the various
rank information.
Merge branch 'master' of https://github.com/ellson/graphviz
Amend the readme
Merge branch 'master' of ssh://github.com/ellson/graphviz
Merge branch 'master' of ssh://github.com/ellson/graphviz
Merge branch 'master' of ssh://github.com/ellson/graphviz
Make sure the auxiliary graph for adjacent flat edges uses the new GD_dotroot() mechanism.
Make sure dot_root() works for all graph objects.
Merge branch 'master' of ssh://github.com/ellson/graphviz