Show Nim: Mummy, a new HTTP + WebSocket server that returns to the ancient ways of threads

[guzba]

Nothing bad, a Mummy server won't even notice. No worker thread ever waits on 
socket IO (neither reading or writing) and this is an important part of Mummy's 
design. The IO thread that uses epoll / etc will just slowly eat the bytes with 
essentially 0 load on the server in the same fundamental way async would.