No subscribe method to add a pubsub subscription

[fschulze]

I got a working connection to my server and getting items from a pubsub node works fine.

I tried adding an event handler like described in usage, but with a node as in item-published:<service>:<node> and nothing happens. The event doesn't ever fire and it seems like calling on doesn't do anything. The pubSubPlugin.listeners() result is empty and there is no network traffic indicating a subscription request to the server.

[fschulze]

Adding the event listener doesn't automatically subscribe to the pubsub node. Currently there is no method to do that in this plugin, but iqCaller and manual xml calls for the stanza it is pretty straight forward to do oneself. It would be nice to have a subscribe method though.