merge web/ into engine/
Makefiles: vet after build
web gui: start interactive loop
web gui: super simple start-stop
web: start/stop run loops, need to protect against break while not
running etc.
web: auto-refresh
web: try to cleanup pause/run logic
web cleanup
web cleanup
web ctl re-work
web: pause/run works, reported data is racy (that's OK)
web cleanup
cleanup webctl
webctl tweaks
web: compact view
web: rudimentary setting parameters on the fly
web: automate parameter list and units
web: fetch param values
web: CSS tweaks
web: setting parameters on-the-fly works