* 0.0.5 Feed (ie: Feed.new('http://feeds.feedburner.com/johnnunemaker'))
* 0.0.6 State (ie: State.new('read').entries)

== Edit API
** 0.0.8 Subscription-Edit (add and remove subscriptions)
** 0.1.0 Edit-Tag (mark items as read, starred, shared, etc.)
** Disable-Tag (no idea what this is)