Release 0.1.16

* Only process `Connection: close` header if full request was read
  (#194). This likely fixes the same issue also reported in #145.
* Fix small memory leak when the `type` query string parameter is
  used; the value was not being freed leading to growing memory usage
  of a few bytes per request. Upgrading is recommended if you use this
  feature.
* Fix invalid call to `ioctl`, which did not seem to affect Linux
  systems but could have had an impact on macOS (found in #197).