Informational endpoints for instances

Exposes two new endpoints for returning the version of the API running
on the instance and statistics about how many requests have been
serviced by the instance (and with what results).
Extended routing support for API

Adds support for handling redirects to the correct endpoint when the
caller is sloppy (e.g. stray characters, extra slashes) and provides a
fallback when a route cannot be found. All actions are logged and
tallied in the statistics lookup.