Fixed FindGUROBI for empty GUROBI_ROOT_DIR
CompleteGraph: Added Iterator inheritance from std::iterator and fixed types
CompleteGraph: Added operator- to support std::distance, added corresponding compile-time tests
Added GridGraph and corresponding unit-test
Cleanup
Cleanup
Added check for stdcxx11
Fixed iterators and VertexIterator::coordinate
Made pointer operator private for Vertex/Edge iterators
Adjacency renamed to AdjacencyType, fixed iterator inheritance
Iterator inheritance cleanup
Included AdjacencyType in all classes
Cleanup
Used typedef std::iterator as Base
Used typedef std::iterator as Base
Merge pull request #8 from kalofoli/iterator_fixes

correcting the iterator scheme of CompleteGraph and Graph
Merge pull request #11 from kalofoli/gridgraph

implementing n-dimensional grid graphs
fixing minor bugs
minor changes
Added algorithms for finding cut vertices and bridges in graphs in linear time. So far, don't work for complete graphs with masks