Log Message:
Changes 2.1.0:
[core] TCP latency optimization
[core] provide tag to include other YAML files from the configuration file
[core] accept sequence of mappings for path-level configuration
[core] fix broken support for TCP Fast Open in OS X
[access-log] provide directive to emit request-level errors
[access-log] emit values of all set-cookie headers concatenated
[fastcgi] fix connection failure when fastcgi.spawn is used with an uid
[file] more pre-defined MIME types
[http2][proxy] recognize link rel=preload headers in interim response as a \ 
trigger to push resources
[http1][http2] validate characters used in the headers
[http1][http2] notify error downstream when an error occurred while generating a \ 
response
[http1][http2] fix resource leak upon upgrade failure to HTTP/2
[http2] add http2-push-preload directive to turn off H2 push being initiated by \ 
link rel=preload header
[http2] add support for cache-digest header
[http2] drop host header in HTTP/2 layer
[http2] don't use etag for calculating casper cookie
[http2] add support for H2 debug state
[mruby] add dos_detector mruby handler
[mruby] add DSL for access control lists (acl)
[mruby] share mruby state and constants between handlers
[mruby] add library for address-block-based access control
[proxy] add an option to connect to upstream using PROXY protocol
[proxy] don't escape : in URI path
[proxy] preserve received URLs as much as possible
[proxy] add an option to prevent emiting x-forwarded-* headers
[proxy] cache TLS session used for upstream connections
[proxy] turn on/off on-the-fly compression based on the x-compress-hint header
[ssl] set add_lock callback to prevent unnecessary lock-add-unlock
[ssl] add support for OpenSSL 1.1.0
[status] collect and report HTTP statistics
[status] report additional stats when jemalloc is used
[throttle] add new handler for throttling the response bandwidth
[libh2o] provide h2o_rand that calls the appropriate random function depending \ 
on the OS
[libh2o] do not require use of picohttpparser.h when using the HTTP/1 client
[libh2o] install library files to the correct location
[misc] provide crash-handler directive to customize crash logging
[misc] guess the default location of h2o.conf
[misc] allow to disable libuv even when it is found
[misc] add font/woff2 to the default mime-type mapping
[misc] mark JavaScript and JSON files as compressible by default