Command line example:

		shellinaboxd -p 4200 -m 'https://192.168.1.150'

	##
	# Client Side
	#

	Shell In A Box accepts messages formatted as JSON strings with 'type' and 'data'
	fields. Messages with same format can be passed back to parent (this) window.

	Message example:

		var message = JSON.stringify({
			type : "message type",
			data : "additional data"
		});

	Messages are passed with function postMessage() and are received in "message"
	events.

	Following types of message can be sent to shellina