Articles with non-ASCII URLs can now open in browser
Adding feeds with non-ASCII URLs now works
Feeds view, timeline: fixed bug where multiple selection could result in showing only unread articles
Help menu: NetNewsWire Help now links to the 5.1 help book
Inspector: window title now matches name of thing being inspected
VoiceOver: fix bug navigating into the Add Account table
Fixed crash that could happen when adding an account
Preferences: Removed non-working (due to sandboxing) feature for setting the default RSS reader