* [ ] Implement timers (#423) * [ ] Implement continuations * [ ] Implement green threads * [ ] Add documentation for green threads 1cc9cfe5c1b3783400be71f40d7e916c08cecb0b – green threads removal, 0312839e181407510efebc0e6a9b851ae3c1dc19 – continuations removal, d04530664eb9f1c4e18c2cac1d7441b5928e7365 – documentation removal.