Refactors WPRefreshViewController to inherit from UIViewController instead of UITableViewController and implement its own table view.
This change allows us to do interesting things with subviews.
Factors the ReaderPostDetailView comment form into its own class and base class to support a reblogging form with similar behavior.
This is a little rough as far as keyboard animations and rotation is concerned and needs more work to perfect it.
Fixes an issue where self-hosted blogs could not be commented on.
Removes the comment form from the view stack when not being displayed. Prevents us glympsing it when rotating on the iPad.
Implements a reblogging form and blog picker for reblogging to a specific blog.
Blog picker is based off of the blog list from NUX.
Updates posts model with a blogSiteId property.
Do not show the button to select a blog if the user only has one.