First version - has a single server process responding.
Finally able to start master and slave and have them automatically connect.
Working multinode version.
Working version - except that we never notice the death of a process.

And we have no recovery so if a new slave come (back) online we start
giving inconsistent answers that never get consistent.
Ready to add process monitoring.
Monitoring now works - but I don't have recovery for the arrival of
a new slave.
Appears to work.
Simple stuff done.
Fixed spelling.
Calculate most common words.