Moving feed definitions to app settings.
Changing ButtonHelper to allow setting of the method context.
Adding SettingsView for changing the feeds.
Adding a Message Bus.
Updating the main feeds view when the feed list changes in Settings.
Adding Win 8 unit test project.
Adding BoolToVisibilityConverter unit tests.
Adding DateTimeToStringConverter unit tests.
Adding InverseBoolConverter unit tests.
Adding InverseBoolToVisibilityConverter unit tests.
Adding ButtonHelper unit tests.
Adding MessageBus unit tests.