Graphviz diagram of interprocess signals
Update readme
Rough in formatter
Use thor
add mux command: start workers in tmux panes
remove unused cruft
Prepare each worker
workers use their own IO
Specify worker kill channel
Encapsulate controlled message processor
default task spawns workers
Mark output feature as a wip
Be attentive to the kill signal
Remove cruft
clean up output by making logging optional
cleanup
improve log message format
Output summaries
Export test env number
Print progress indicators in colour