version 1.0.0

version 0.6.0

support for multigraphs; DAG ancestry; Prim's MST; A*; multi path bi-…

…directional BFS; perf improvements; cleanup

sync up project and release versions

version 0.4.1: fix for scc + minor changes after commit 1e492e0027115…

…db6006585c47f88e8f7985a6a06r