move data file to example dir
[PIE-4] Make sure to carry the original status code after serializing

Serializer generates an repl with the serialized version of the previous
response
[PIE-4] Fix uri generation in paginator.

hapi has request.path not uri
[PIE-4] Api plugins should ignore request paths they don't know about.

api/v1 should not try to deal with api/v2 for example
[PIE-4] xml serializer should return no content when instructred.

It should not try to create and empty xml document, but just return
nothing