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="PULL"
	authtype="CURVESERVER"
	clientcertpath="/etc/curve.d/"
	servercertpath="/etc/curve.d/example_curve_server_cert"
)
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Explanation of Options:

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)
authtype: CURVECLIENT or CURVESERVER
clientcertpath: 
	if CURVECLIENT, this client's cert
	if CURVESERVER, "*" for all, or a directory of allowed public certs
servercertpath: 
	if CURVECLIENT, the servers public cert you wish to connect to
	if CURVESERVER, this servers cert