fix: Java serialization of inner object Adj
mod: removed members marked deprecated in 1.8.0; also removed VisitorReturn.
added some of the examples on scala-graph.org
intern: restructuring code, Set types including AnySet, minor additions
fix: &=
intern: Set types including AnySet (2)
mod: return lazily filtered sets whenever possible
mod: return lazily filtered sets whenever possible (2)
mod/intern: traversers optimized for speed and refactored for better modularity
Updating source code with last commits on base