1.1.0
- added the ability to specify labels and attributes for edges (for use in the graphviz output).
- fixed a bug with calling
toposort
more than once. - edges are now checked for uniqueness.
- added methods for getting the number of nodes and the node objects.
- added the ability to remove nodes and edges.
- added the ability to specify the integer kind via preprocessor directive.
- some code cleanups.