Log Message:
Update to 2.0.2. From the changelog:

- [fastcgi] setenv should displace HTTP headers
  #996 (Kazuho Oku)
- [http2] fix buffer overrun
  #972 (Frederik Deweerdt)
- [misc] fix build error when libuv is not found
  #1008 (nextgenthemes)
- [misc] fix assertion failure when YAML alias and merge is used in
  certain way
  #1011 (Kazuho Oku)
- [fastcgi] fix internal server error when PHP returns a huge header
  #958 (Kazuho Oku)
- [http2] recognize link header containing multiple links
  #950 (Frederik Deweerdt)
- [libh2o] fix resource leaks upon startup failure
  #936 (David CARLIER)
- [libh2o] do not require linking to libbrotli externally
  #941 (Kazuho Oku)
- [core][breaking change] do not automatically append `/` to path-level
  configuration
  #820 (Kazuho Oku)
- [core] support `<<` in configuration file
  #786 (Kazuho Oku)
- [core] configurable server: header
  #877 (Frederik Deweerdt)
- [core] add directive for customizing the path of temporary buffer files
  #911 (Kazuho Oku)
- [core] fix crash when receiving SIGTERM during start-up
  #878 (Frederik Deweerdt)
- [core] spawn the configured number of DNS client threads
  #880 (Sean McArthur)
- [access-log] add directive for logging protocol-specific values
  #801 (Kazuho Oku)
- [access-log][fastcgi][mruby] per-request environment variables
  #868 (Kazuho Oku)
- [access-log] fix memory leak during start-up
  #864 (Frederik Deweerdt)
- [compress] on-the-fly compression using brotli, as well as
  directives to tune the compression parameters
  #802, #924 (Kazuho Oku, Frederik Deweerdt)
- [compress][expires] refrain from setting redundant `cache-control` tokens
  #846 (Kazuho Oku)
- [file] `file.file` directive for mapping specific file
  #822 (Kazuho Oku)
- [file] `send-compress` directive (renamed from `send-gzip`) to support
  pre-compressed files using brotli
  #802 (Kazuho Oku)
- [file] cache open failures
  #836 (Kazuho Oku)
- [http2] support for nopush attribute in the link rel=preload header
  #863 (Satoh Hiroh)
- [http2] support for push after delegation
  #866 (Kazuho Oku)
- [http2] ignore push indications made by a pushed response
  #897 (Kazuho Oku)
- [http2] accept `capacity-bits` attribute of the `http2-casper`
  configuration directive
  #882 (Satoh Hiroh)
- [http2] avoid memcpy during HPACK huffman encoding
  #749 (Kazuho Oku)
- [http2] fix potential stall when http2-max-concurrent-requests-per-
  connection is set to a small number
  #912 (Kazuho Oku)
- [http2] refuse push a single resource more than once
  #903 (Kazuho Oku)
- [http2] fix assertion failure when receiving more data than expected
  during upgrade
  #922 (Frederik Deweerdt)
- [mruby] add $H2O_ROOT/share/h2o/mruby to the default load path
  #851 (Kazuho Oku)
- [proxy] add support for HTTPS
  #875 (Kazuho Oku)
- [proxy] add an configuration option to pass through `x-forwarded-
  proto` request header
  #883 (Kazuho Oku)
- [proxy] log error when upstream connection is unexpectedly closed
  #895 (Frederik Deweerdt)
- [ssl] update libressl to 2.2.7
  #898 (Kazuho Oku)
- [ssl] support ECDH curves other than P-256
  #841 (Kazuho Oku)
- [ssl] add support for text-based memcache protocol
  #854 (Kazuho Oku)
- [ssl] fix memory leak when using TLS resumption with the memcached backend
  #856 (Kazuho Oku)
- [ssl] fix "undefined subroutine" error in the OCSP updater
  #872 (Masayuki Matsuki)
- [ssl] cap the number of OCSP updaters running concurrently
  #891 (Kazuho Oku)
- [ssl] fix use-after-free when using session resumption with memcached backend
  #923 (Frederik Deweerdt)
- [libh2o] add API for obtaining the socket descriptor
  #886 (Frederik Deweerdt)
- [libh2o] add API to selectively disable automated I/O on reads and writes
  #890 (Frederik Deweerdt)
- [libh2o] bugfix: h2o_mem_swap swaps only the first 256 bytes
  #924 (Frederik Deweerdt)
- [status] introduce the status handler
  #848 (Kazuho Oku)
- [misc] install examples
  #850 (James Rouzier)
- [security fix][http2] fix use-after-free on premature connection close
  (CVE-2016-4817)
  #920 (Frederik Deweerdt)
- [core] fix SIGBUS when temporary disk space is full
  #910 (Kazuho Oku)
- [mruby] do not drop `link` header
  #913 (Kazuho Oku)
- [mruby] fix memory leak during initialization
  #906 (Frederik Deweerdt)
- [mruby] fix race condition in mruby regex handler
  #908 (Kazuho Oku)
- [libh2o] fix crash in h2o_url_stringify
  #918 (Kazuho OKu)