Flush remaining data in case of 3xx redirect
Flush remaining data in case of 3xx redirect

When Yaws returns a 3xx response, if the client connection is kept alive,
the remaining data must be flushed. Else the next request on the same
connection cannot be handled.

jgrinstead/yaws,jgrinstead/yaws,jgrinstead/yaws,jgrinstead/yaws,jgrinstead/yaws,jgrinstead/yaws,jgrinstead/yaws