on osx.

Use the cli_timeout to control how long the MGR waits before killing
the worker process, and give this test 60 seconds.

shutdown.

asuming that would for ever be the case.  This fails on IPv6 only
systems and FreeBSD jails where localhost is the "real" IP number.

cases dealing with oc's without a boc duing fill-up.

All objcores, also for synth and req.body are now born with a boc,
which must of course be properly disposed of.

More assertive LRU code.

To get JSON back, the first argument must be "-j".

Currently only "help -j" is implemented, but that
will helpfully tell you which commands support
json output.

All JSON output has the form:

	[ version#, [<cli_command>],
		stuff
	]

For instance:

	[ 1, ["help", "-j"],
	  {
	  "request": "help",
	  "syntax": "help [<command>]",
	  "help": "\tShow command/protocol help.",
	  "minarg": 0, "maxarg": 1, "flags": "", "json": true
	  },
	  {
	  "request": "ping",
	  "syntax": "ping [<timestamp>]",
	  "help": "\tKeep connection alive.",
	  "minarg": 0, "maxarg": 1, "flags": "", "json": false
	  },
	  ...
	]

The string quoting for weird characters in JSON is XXX incomplete.

Prodded for by:	Kristian

overloading the LRUs list.