Changes 1.17.0:

libnghttp2
* In this release, libnghttp2 by default disallows content-length header field in 1xx, 204, or 200 to a CONNECT request as described in RFC 7230.

libnghttp2_asio
* Previously, server-side on_close callback was not called when connection was closed while streams were still alive. Now on_close callback is called for active streams on connection close.

build
* Remo E provided a patch to include MSVC version resource in cmake Windows build.

nghttpx
* We fixed the bug that sometimes made nghttpx crash if --backend-http-proxy-uri was used.
* We fixed the bug that one HTTP header fields from HTTP/1.1 backend were split into multiple fields in some situations.
* We fixed the bug that zero-length POST was not forwarded to HTTP/1.1 backend, causing dead lock.
* We removed optional reason phrase from SPDY response header fields. This is OK since reason phrase is optional.
* To align the changes made in libnghttp2 that disallows content-length in 1xx, 204, or 200 to a CONNECT request, we did the same thing to HTTP/1.1 backend. We also disallow transfer-encoding in those status codes as well.
* dalf provided a patch to fix compile failure with BoringSSL.

nghttpd, nghttpx, and libnghttp2_asio
* We fixed the bug that mandatory SP after status code wass missing in HTTP/1.1 status line.


(adam)