[xenforo] merged branch pubsubhubbub (TYPE_NOTIFICATION, TYPE_THREAD_POST support), new module subscription-2014081001
[wordpress_consumer] improved post sync wp-xf (now update xf thread if wp post is changed)
[xenforo] added client_id into intent verification request for subscriptions
[xenforo] included  `subscription_callback` parameter to GET `/notifications` and GET `/posts` for subscription discovery
[xenforo] improved ping queue processing (better defer trigger time)
[xenforo] fixed bug using bdApi_Link while not in api environment
[xenforo] improved ping logging
[wordpress_consumer] added support for api subscription (2 way WordPress post sync)
[xenforo] updated PUT /posts/:postId to undelete/approve posts automatically if user has the appropriate permission
[wordpress_consumer] improved support for comment sync (complete 2 way sync, with deletions)
[wordpress_consumer] improved support for post sync (now with push notification)
[wordpress_consumer] improved comment sync, stop asap if subscription callback is found
[wordpress_consumer] improved post sync
[wordpress_consumer] improved comment sync
[wordpress_consumer] fixed typo
[wordpress_consumer] added code to auto generate one time token for all requests if access token is missing
[wordpress_consumer] fixed typo
[wordpress_consumer] added code to save server resource for callback requests
merged branch 'pubsubhubbub'
[xenforo] cleaned up subscription related stuff