reading graph from list of edges
documentation fix, reader design fix
GraphReaderFromDirectory trait
after review fixes
fixes
Merge pull request #58 from szymonm/ListOfEdgesReader

reading graph from list of edges
Performance benchmarks
review fixes
review fixes
GraphOperationBenchmark -> OperationBenchmark
Merge pull request #54 from szymonm/PerformanceBenchmark

Performance benchmark (#37)
Fixed return type which was causing compile error.
Change logging level from info to debug.
Added a new utility method to compute number of mutual edges in a graph.
Refactored tests for DirectedGraphUtils stuff into a separate file.
Added new tests for graph generators in TestGraph