Pass unencoded JsonObj to before_request
Pass unencoded JsonObj to before_request

It is much easier to write epi plugins if the object
it receives is not encoded yet.
So we pass unencoded JSON object to chttpd_plugin:before_response

COUCHDB-2966

cloudant/couchdb-couch,fkaempfer/couchdb,fkaempfer/couchdb,fkaempfer/couchdb,cloudant/couchdb-couch,fkaempfer/couchdb,apache/couchdb-couch,fkaempfer/couchdb,fkaempfer/couchdb,apache/couchdb-couch,cloudant/couchdb-couch,apache/couchdb-couch