DataTorrent/malhar-angular-widgets — pull request #1 by andyperlitch (2014-08-10 16:34:45+00:00)
Title: Unsubscribe message sent when no other listeners on topic

Fixes [MLHR-1220](https://malhar.atlassian.net/browse/MLHR-1220).

Additionally, replaced native Function.prototype.bind with angular.bind.