Extract r.on block response handling to separate method
Extract r.on block response handling to separate method

This makes it possible to override the method and handle other
response types.  For example, if you wanted to handle hashes
and arrays and write JSON to the response.

mikz/roda,kematzy/roda,duykhoa/roda,mikz/roda,johan--/roda,duykhoa/roda,celsworth/roda,jeremyevans/roda,janko-m/roda,Freaky/roda,janko-m/roda,duykhoa/roda,Freaky/roda,kematzy/roda,Freaky/roda,janko-m/roda,johan--/roda,jeremyevans/roda,celsworth/roda,kematzy/roda,mikz/roda,johan--/roda,jeremyevans/roda,celsworth/roda