Simplified sendfile_max_chunk handling. Previously, it was checked that sendfile_max_chunk was enabled and almost whole sendfile_max_chunk was sent (see e67ef50c3176), to avoid delaying connections where sendfile_max_chunk wasn't reached (for example, when sending responses smaller than sendfile_max_chunk). Now we instead check if there are unsent data, and the connection is still ready for writing. Additionally we also check c->write->delayed to ignore connections already delayed by limit_rate. This approach is believed to be more robust, and correctly handles not only sendfile_max_chunk, but also internal limits of c->send_chain(), such as sendfile() maximum supported length (ticket #1870).

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/.