Export symbols for dot attributed graphs
darcs-hash:
20060208212944-d0603-
e5fac7d420941e9eef72e444da9d853c6183314b.gz
Added support for calling the dot executable, plus a bunch of dot attributes.
darcs-hash:
20060208212629-d0603-
4994de100350fc1fc64f7308c2873c020063d069.gz