Guests now trigger topic notifications, and the translator has
been updated so that translations inside translations are
handled in a way that doesn't cause the translator to explode.
-only send a notification when the person you follow creates a topic
-you still get a notification per post if you are following a topic
-changed notifications.push so that it sends the notifications over a
period of time, currently to 50 users per second
-optimized topics.notifyFollowers and
user.notifications.sendTopicNotification, they no longer query the
database for the topic and post data instead they get it as params
-you can no longer follow yourself :)
-changed mongo sortedSetRemove so that it doesn't use $in if there is
only a single value to remove
* new methods
privileges.categories.filter
privileges.topics.filter
privileges.posts.filter
they take a list of ids and a privilege, and return the filtered list of
ids, faster than doing async.filter and calling the db for each id.
* remove event listeners on recent page before adding
* group.exists works for both single group names and arrays
* helpers.allowedTo works for both a single cid and an array of cids
* moved filter:topic.post hook right before topic creation.
* moved filter:topic.reply hook right before topic reply.