Cron job add taskqueue for publish and email.
If fail, a new cron job will be added indep.ly for publishing
(self.post)
Drupal Services api improved
Performance improvements with Views Json Export.
drupal.self.node.custom() returns latest post in json (list) format
which is highly compatible with services node.retrieve.
Tweet task now use this custom export.
It is better for using Views caching mechanism.