Fixes	#872

"pending" if an input snippet ended with an XML comment or CDATA block.

Not spotted by:	FlexeLint

Fixes: #873

This fixes buildbot problems on Solaris, since the solaris buildbot
runs an ancient gcc.

RHEL5/CentOS 5 has an ancient version of autoconf which doesn't pick
up the necessary runes to enable C99 mode, leading to compilation
failures.  Hack around this in configure.ac

panic.show shows the last panic from the child
panic.clear removes it.

foo.ttl still returns -1. to close gap due to integer second timestamps.

one single header.

Example usage:

	import std;

	sub vcl_recv {
		std.collect(req.http.foo);
	}
	sub vcl_fetch {
		std.collect(beresp.http.bar);
	}

Fixes: #866

ErrWhere()

called vfp->begin.

Fixes: #871, #870

earlier

No wonder gzip support leaked memory...

Orginally this memory came from the the thread workspace so deallocation
was automatic.  Not so when we switched to malloc...

use them for VSM allocation

Spotted by:	Geoff

(Did you remember that toupper() can be called with EOF ?)

cold of spring and add the "duration" conversion function to vmod_std.

The way these conversions work is that you give them the string you
want converted, and the value to use if they cannot.

like so:

	set beresp.ttl = std.duration(beresp.http.x-ttl, 10 s);

Use system libjemalloc if found, if not we use the bundled one.

uuidgen lives in e2fsprogs which is almost always installed, unlike
mkpasswd which lives in expect, so change to using uuidgen.  No change
for installed systems.