QUIC: fixed possible use-after-free on stream cleanup. A QUIC stream could be destroyed by handler while in ngx_quic_stream_input(). To detect this, ngx_quic_find_stream() is used to check that it still exists. Previously, a stream id was passed to this routine off the frame structure. In case of stream cleanup, it is freed along with other frames belonging to the stream on cleanup. Then, a cleanup handler reuses last frames to update MAX_STREAMS and serve other purpose. Thus, ngx_quic_find_stream() is passed a reused frame with zeroed out part pointed by stream_id. If a stream with id 0x0 still exists, this leads to use-after-free.

geo2nginx.pl 		by Andrei Nigmatulin

	The perl script to convert CSV geoip database ( free download
	at http://www.maxmind.com/app/geoip_country ) to format, suitable
	for use by the ngx_http_geo_module.


unicode2nginx		by Maxim Dounin

	The perl script to convert unicode mappings ( available
	at http://www.unicode.org/Public/MAPPINGS/ ) to the nginx
	configuration file format.
	Two generated full maps for windows-1251 and koi8-r.


vim			by Evan Miller

	Syntax highlighting of nginx configuration for vim, to be
	placed into ~/.vim/.