Changes with nginx 1.13.2 27 Jun 2017
*) Change: nginx now returns 200 instead of 416 when a range starting with 0 is requested from an empty file.
*) Feature: the "add_trailer" directive. Thanks to Piotr Sikora.
*) Bugfix: nginx could not be built on Cygwin and NetBSD; the bug had appeared in 1.13.0.
*) Bugfix: nginx could not be built under MSYS2 / MinGW 64-bit. Thanks to Orgad Shaneh.
*) Bugfix: a segmentation fault might occur in a worker process when using SSI with many includes and proxy_pass with variables.
*) Bugfix: in the ngx_http_v2_module. Thanks to Piotr Sikora.