PubSub Changes for Swift
PubSub (Removed)
Removed NSObject.enclosure(_: PSEnclosure!, downloadStateDidChange: PSEnclosureDownloadState)
Removed NSObject.feed(_: PSFeed!, didAddEntries: [AnyObject]!)
Removed NSObject.feed(_: PSFeed!, didChangeFlagsInEntries: [AnyObject]!)
Removed NSObject.feed(_: PSFeed!, didRemoveEntriesWithIdentifiers: [AnyObject]!)
Removed NSObject.feed(_: PSFeed!, didUpdateEntries: [AnyObject]!)
Removed NSObject.feedDidBeginRefresh(_: PSFeed!)
Removed NSObject.feedDidEndRefresh(_: PSFeed!)
Removed PSFeedSettingsIntervalDefault
Removed PSFeedSettingsIntervalNever
Removed PSFeedSettingsUnlimitedSize