Fixes #1253

If we fail to allocate storage, try a smaller chunk, not a larger one.

we may be able to orderly terminate/prevent the transmission
in future protocols.

so move the guts of it from cache_fetch.c to cache_http1_fsm.c.

we generate (VSL_LostHeader).

Add counters for requests received with 400, 413 and 417 errors.

Inspired by:	patch from Lasse

net benefit from hair-splitting the number of http headers we
support.   Improve description to bring this point home, in case
I ever get that silly idea again.

and the counter had race issues.

Polish vsc_f_main.h a bit while here

we can choose to present on/off or true/false, depending on what
makes most sense.

Fixes	#1245

A more kosher solution might be pthread_getthreadid_np() on the platforms
which support it, but I can't be bothered for three debugging printfs :-)

Submitted by:	Nils Goroll
Fixes		#932

surrounding the privsep user/group setting code.

Fixes #1243

than hackishly just setting its value to the wanted default.

Fixes	#1244

starting surgery on parameter defaults.

Keep .request as an alias for at least one release cycle.

I have gone a level deeper than Lasses patch, and also carried this
rename through the C-code, docs and VTC files.

Submitted by:	 Federico G. Schwindt

Thanks!

parameter to preserve the arguments as seen e.g. ps.

Fixes: #1238

Varnishtest -storage option can not be specified multiple times to
append. Fix the test case to list all the silos in one -storage
option.

When STV_BanInfo fails, it means the stevedore has run out of space to
persist the list. An export should descrease the size.

this on startup, after reading the persisted ban lists, to make sure
all stevedores has all the bans from every stevedore stored.

until ban compile.

Document the reason.

reload all the statements in one go.

makes sure that the ban lists will not change until we exit.

This is to give persistent stevedores a chance to clean up their ban
lists without having to worry about the lists changing under them.

The subsequent cleanup/separation of .h files makes this test
much less important, and it's not like it is a conclusive or
comprehensive test in the first place.

Fixes	#1230

Output that we've switched VCLs and which one we have switched to when
using vcl.use.

Fixes #1232

Fixes #1233