upgraded the nginx core to 1.4.3.
doc: use markdown for the README file.
doc: some formatting fixes.
now we bundle README.markdown to our release tarballs.
optimize: now we use https for github downloads to save the unnecessary 301 redirects. thanks Ajay Kemparaj for the patch in #34.
bugfix: backported Maxim Dounin's patch to fix an issue in the ngx_gzip module: it did not clear r->connection->buffered when the pending data was already flushed out. this could hang ngx_lua's ngx.flush(true) call, for example.
bugfix: applied the gzip_flush_bug.patch to the nginx core. see also http://mailman.nginx.org/pipermail/nginx-devel/2013-October/004429.html
bugfix: applied the cache_lock_hang_in_subreq patch to the nginx core to fix the request hang when using proxy_cache_lock in subrequests and the cache lock timeout happens.
updated the gzip_flush_bug patch according to the feedback from Maxim Dounin.
updated nginx-1.4.3-gzip_flush_bug.patch according to Maxim Dounin's feedback.
feature: added patch nginx-1.4.3-proxy_host_port_vars to make $proxy_host and $proxy_port accessible for dynamic languages like Lua and Perl.
upgraded lua-resty-websocket to 0.02.
upgraded lua-resty-mysql to 0.14.
upgraded lua-resty-redis to 0.17 and lua-resty-upload to 0.09.
upgraded ngx_echo to 0.49.
upgraded ngx_headers_more to 0.23.
upgraded ngx_srcache to 0.23.
upgraded ngx_xss to 0.04.
upgraded ngx_rds_json to 0.12.
upgraded ngx_rds_csv to 0.05.