readline doesn't really handle when input comes from a file or pipe,
so only use readline if stdin is a tty.

Thanks to johnnyrun for a patch which was used for inspiration here.

Fixes #1314

Reset vfp when restarting in deliver, in case it has be set in
cnt_fetchbody already.

Fixes: #979

Fixes: #1272

Patch by: ehocdet

pointer as the first element.

Fixes: #1287

07d488cb partially broke varnishlog,
since libvarnishapi did not properly check if both -c and -b were
given.

In addition, varnishd did not emit a tag at the start of a backend
transaction.  Emit BackendXID since that seems appropriate.

Fixes #1325

Make it clearer that vcl_hash is called on lookup, pass and pipe.

read error' when tripping on first_byte_timeout, and 'http read error'
when tripping on between_bytes_timeout (used to be 'http first read
error' in both cases). This now matches current master.

This looks like a bit of forgotten debugging, left by mistake.

Fixes	#1312

See Also:	CVE-2013-4090

Fixes #1285

Fixes: #1076

Some of them are rather pedantic:  "NULL" vs "(char*)0" -- Really ?

Remove a bunch of ifdef code and fix up proper configure check for
libedit.

Fixes #1277

The test case for this doesn't trigger, but the failing VCL (when
given in a file with -f) looks like:

director squid round-robin {
	 { .backend = { .host = "127.0.0.1"; .port = "3131"; } }
}

director dnsdir dns {
	 .list = {
	       "201.7.184.0"/32;
	 }
}

sub vcl_recv {
    set req.backend = dnsdir;
}

Fixes #1295

If there are multiple matches for a given VSL tag (such as "Hit"
matching both Hit and HitPass), prefer the one that is an exact match.

Fixes #1288

If we don't add -c and -b in there, varnishlog will print all
transactions that aren't associated with a session.  That is likely to
not be what the user wants.

Fixes: #1071

poll can return EINTR, so we need to handle that.

Fixes: #1166

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

Fixes: #1238

this information is no longer available.

Fixes #1228

Fixed by: Federico G. Schwindt
Fixes: #1216

set req.http.Cookie = req.http.Cookie + " " + req.http.Cookie-sess;

do the obvious thing, even if req.http.Cookie does not exist.

The underlying issue was a badly though through overloading of
the NULL value to mean "Unset".  Now it has its own magic marker.

Fixes #1218