Some new methods have been added to an old API:
* New decorator for connectivity behavior. It checks whether the features being connected have the according geometries: wkbPoint for source and target vertexes and wkbLine for edge. If this decorator hasn't been set any geometries must "lie under" the graph (even poligons).
* Delete feature method. Deletes the feature from data source, from the according system tables and from the graph.
* Remove edge, remove vertex methods. The removing methods of the graph.
All these methods will be moved to the new API in future.