Alex Stokes 10e257490f
Clarify get_randao_mix accessor
We avoid a genesis underflow by taking the randao epoch in `generate_seed` to be `+ EPOCHS_PER_HISTORICAL_VECTOR`.

This conflicts with the expected epoch bounds noted  in `get_randao_mix` and this PR attempts to clarify the situation by leaving a note.
2019-06-26 16:33:23 -06:00
..