- jb run flags, from TheDistractor with some tweaks

- jb run additional inputs
- startallservers logs the http service in jeebus so it can be 'derived'
- Prepare to support TLS patches (on http)
- jb run basic SIG support
3 new packages, {os/signal, flags, syscall} all x-plat ok.
rm/
Merge branch 'dt-mods'