Changes with nginx 1.4.6                                        04 Mar 2014

    *) Bugfix: the "client_max_body_size" directive might not work when
      reading a request body using chunked transfer encoding; the bug had
      appeared in 1.3.9.
      Thanks to Lucas Molas.

    *) Bugfix: a segmentation fault might occur in a worker process when
      proxying WebSocket connections.

(rodent)