extend/cowboy — pull request #109 by klaar (2011-12-16 15:30:39+00:00)
Title: update type of resp_body to iodata

resp_body is set by cowboy_http_req:set_resp_body/2 which accepts
the input type iodata(). Update the resp_body field to use the same
type. Also update the cowboy_http_req:has_resp_body/2 function to
use the iolist_size/1 which works with both binary() and iolist()
values instead of the byte_size/1 function which only works with
binary() values.