Submitted by:	Muhammad Adeel via github

Found by:   Geoff

Source data from file time on repo.varnish-cache.org.

Fixes: #1349

Trivial test VCL:

	C{ }C; vcl 4.0;

system size

This is to spot obvious typos

in play in a way that does not lead to panics.

Spotted by:	Martin
Fixes		#1607

Make the help text for the VSC counters a bit more explanatory.

Fixes: #1610

Spotted by: coredump

Writing to bereq.uncacheable in backend_response and backend_error would only
make sense in the context of a retry. In most real world cases, writing to
be*resp*.uncacheable would be intended in backend_response and backend_error.

This was mentioned in the user guide, but not in the man
page itself.

Pointed out by:		Brett Fitzgerald

This fixes a race where the client started freeing the body (which it
does in the case of new hit-for-pass object being inserted) before the
sanity functions were run.

Fixes: #1596

it is sane and pass it to streaming clients, provided we don't munge
the body along the way.

The ungzip'ed length stored as attribute has not been backported to
4.0, meaning on-the-fly ungzip will be delivered chunked.

Fixes: #1506

Conflicts:
	bin/varnishd/cache/cache_fetch.c

Conflicts:
	bin/varnishd/cache/cache_http1_deliver.c