Log Message:
(www/R-httpuv) Updated 1.5.1 to 1.6.1

httpuv 1.6.1
============

* The `timegm()` function is a non-standard GNU extension, so it has
  been replaced with an internal `timegm2()` function. (#300)

httpuv 1.6.0
============

* Remove BH dependency. httpuv now requires a compiler which supports
  C++11. (#297)

httpuv 1.5.5
============

* Fix SHA1 calculation, and thus WebSocket server handshakes, on
  big-endian systems. (#284)

* Fixed #195: Responses required `headers` to be a named list. Now it
  can also be `NULL`, an empty unnamed list, or it can be
  unset. (#289)

* Allow responses to omit `body` (or set it as `NULL`) to avoid
  sending a body or setting the `Content-Length` header. This is
  intended for use with HTTP 204/304 responses. (#288)

httpuv 1.5.4
============

* Fixed #275: Large HTTP request headers could get truncated if they
  spanned more than one TCP message. (#277)

* Fixed build for Solaris. (#271)

* Fixed a test that had incorrect logic. (#272)

httpuv 1.5.3.1
==============

* Updated libuv to version 1.37.0. (#266)

* Fixed #204: On UBSAN builds of R, there were warnings about
  unaligned memory access. (#246)

* Avoid creating a new Rook error stream object for each request. This
  should improve performance. (#245)

* Resolved #247: httpuv no longer returns a HTTP 400 code for static
  files when the "Content-Length" header is 0. This Content-Length
  header is inserted by some proxies even for messages without
  payloads. (#248)

* Resolved #253: Setting the FRAMEWORK environment variable would
  break compilation.  This change removes any dependency on that
  variable. (#254)

httpuv 1.5.2
============

* In the static file-serving code path, httpuv previously looked for a
  `Connection: upgrade` header; if it found this header, it would not
  try to serve a static file, and it would instead forward the HTTP
  request to the R code path. However, some proxies are configured to
  always set this header, even when the connection is not actually
  meant to be upgraded. Now, instead of looking for a `Connection:
  upgrade` header, httpuv looks for the presence of an `Upgrade`
  header (with any value), and should be more robust to
  incorrectly-configured proxies. (#215)

* Fixed handling of messages without payloads: (#219)

* Fixed #224: Static file serving on Windows did not work correctly if
  it was from a path that contained non-ASCII characters. (#227)

* Resolved #194, #233: Added a `quiet` option to `startServer`, which
  suppresses startup error messages that are normally printed to
  console (and can't be intercepted with `capture.output()`). (#234)

* Added a new function `randomPort()`, which returns a random
  available port for listening on. (#234)

* Added a new (unexported) function `logLevel()`, for controlling
  debugging information that will be printed to the
  console. Previously, httpuv occasionally printed messages like
  `ERROR: [uv_write] broken pipe` and `ERROR: [uv_write] bad file
  descriptor` by default. This happened when the server tried to write
  to a pipe that was already closed, but the situation was not
  harmful, and was already being handled correctly. Now these messages
  are printed only if the log level is set to `INFO` or
  `DEBUG`. (#223)

* If an application's `$call()` method is missing, it will now give a
  404 response instead of a 500 response. (#237)

* Disallowed backslash in static path, to prevent path traversal attacks. (#235)

* Static file serving on Windows could fail if multiple requests
  accessed the same file simultaneously. (#239)