QUIC: removed use of SSL_quic_read_level and SSL_quic_write_level. As explained in BoringSSL change[1], levels were introduced in the original QUIC API to draw a line between when keys are released and when are active. In the new QUIC API they are released in separate calls when it's needed. BoringSSL has then a consideration to remove levels API, hence the change. If not available e.g. from a QUIC packet header, levels can be taken based on keys availability. The only real use of levels is to prevent using app keys before they are active in QuicTLS that provides the old BoringSSL QUIC API, it is replaced with an equivalent check of c->ssl->handshaked. This change also removes OpenSSL compat shims since they are no longer used. The only exception left is caching write level from the keylog callback in the internal field which is a handy equivalent of checking keys availability. [1] https://boringssl.googlesource.com/boringssl/+/1e859054

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/.