VIP30 at todays bugwash

[Poul-Henning Kamp]

Please see:

	https://github.com/varnishcache/varnish-cache/wiki/VIP30%3A-Plumbing%3A-vcl_raw%28%29-and-vcl_pipe%28%29

Discussion in #3471

I'd like to get a preliminary go/no-go on the conceptual idea at bugwash today.

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe
Never attribute to malice what can adequately be explained by incompetence.