listenFor.md

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+listenFor(messageName, *bundleName, handlerFunc)
+Listens for a message, and invokes the provided callback each time the message is received. If any data was sent with the message, it will be passed to the callback.
+Messages are namespaced by bundle. To listen to a message in another bundle's namespace, provide it as the second argument.
+You may define multiple listenFor handlers for a given message. They will be called in the order they were registered.
+#Parameters
+Name	Type	Attributes	Default	Description
+messageName	string			The name of the message.
+bundleName	string	<optional>	CURR_BNDL	The bundle namespace to in which to listen for this message.
+handlerFunc	function			The callback fired when this message is received.