TODO
====

* Fix the inappropriate use of Common Coin in the Byzantine Agreement protocol

   This bug is explained in https://github.com/amiller/HoneyBadgerBFT/issues/59
   where a solution is suggested introducing an additional type of message,
   CONF.

   There may be alternative solutions, such as using a different Byzantine
   Agreement protocol altogether, for example,
   https://people.csail.mit.edu/silvio/Selected%20Scientific%20Papers/Distributed%20Computation/BYZANTYNE%20AGREEMENT%20MADE%20TRIVIAL.pdf