Nested Views -> Iterating in template

Nesting views seems to be mostly useful for when you really need to the
model to be available in the nested view for more complex view logic. Or
when your collection is extended and you want to render additional views
e.g. infinite scroll
Model / Collection for Feed entries
Entries now stored in a collection on the Feed
Iterate directly on entries showing published date
Pull entries from the Feed
EntryView -- View individual entries
Added readEntry route
Removed ItemView
Added a core collection MoxieCollection

Currently this implements "getAsync" a method to provide an async API to
the existing Collection.get. This way we can call get on a Model pending
it being loaded into the collection.
Updated to extend MoxieCollection
getAsync with callbacks when loading feeds/entries

Also added a simple error handler to show the user an alert and redirect
to the new browse news view.