Sam Wycherley

Ah yes thanks, that's a more efficient route. Still, would be nice to have `is_cyclic` working for undirected graphs

When I have time, I'll try and work on it and put up a PR. Feel free to close in the meantime.

@oyamad Sorry, should be fixed now

Thanks for the suggestions! It should now work that inputting `rational` payoffs returns a vector of `rational` Nash equilibria, and I have also implemented the other suggestions.

Added. I've also moved `NEs_approx_equal` from `test_support_enumeration.jl` to `runtests.jl` since I changed the vertex enumeration tests to use it

Did anyone get anywhere with this? I have an implementation that is also not too efficient but gets the time for the example in #64 down to about 70 microseconds...

@oyamad Great, I'll submit a PR