LIVEOAK-497: Remove empty elements from the resource instead of adding in a null value.
Remove unused class from test source
LIVEOAK-586 Unsubscribing a subscription is not implemented in container
 - Add unsubscribe functionality for STOMP subscriptions
Fix http.js for Stomp transport to call correct error callback function name
LIVEOAK-591 Stomp connection is not retained
 - Check whether the Stomp Client transport is set before issuing a new connect. If it's set, simply execute the callback
Merge pull request #349 from mwringe/LIVEOAK-497

LIVEOAK-497