dinit

• Replaces s6 and s6-rc
• Supports startup notification (compatible with s6)
• dinit views on s6-rc:

"S6-RC nicely manages chaining of service standard input/output, facilitating
setting up a logging chain where a logging process consumes the output of a
service, and either can be restarted while losing only minimal (if any)
output from the logs."

"It seems likely that S6-RC is resilient to allocation failure."

• Do not use hidepid for proc?