CZMQ Input Plugin

REQUIREMENTS:

* libsodium ( https://github.com/jedisct1/libsodium )
* zeromq v4.x build with libsodium support ( http://zeromq.org/ )
* czmq 3.x ( http://czmq.zeromq.org/ )

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module(load="imczmq")

input(
	type="imczmq"
	endpoints="tcp://*:24555"
	topics="topic1,topic2,topic3"
	socktype="SUB"
	conntype="CURVESERVER"
	curveclientcert="/etc/curve.d/"
	curveservercert="/etc/curve.d/example_curve_server_cert"
)
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Explanation of Options:

name: name of this action
type: type of action (imczmq for this plugin)
endpoints: comma delimited list of zeromq endpoints (see zeromq documentation)
socktype: zeromq socket type (currently supports PULL and SUB)
conntype:
	CLIENT - zeromq connect
	SERVER - zeromq bind
	CURVECLIENT - zeromq connect with curve encryption
	CURVESERVER - zeromq bind with curve encryption
curveclientcert: 
	if CURVECLIENT, this client's cert
	if CURVESERVER, "*" for all, or a directory of allowed public certs
curveservercert: 
	if CURVECLIENT, the servers public cert you wish to connect to
	if CURVESERVER, this servers cert