Update nginx from 1.16.0 to new mainline version 1.17.0.
Update njs module from 0.3.1 to 0.3.2.

<ChangeLog with nginx 1.17.0>

*) Feature: variables support in the "limit_rate" and "limit_rate_after"

directives.

*) Feature: variables support in the "proxy_upload_rate" and

"proxy_download_rate" directives in the stream module.

*) Change: minimum supported OpenSSL version is 0.9.8.

*) Change: now the postpone filter is always built.

*) Bugfix: the "include" directive did not work inside the "if" and

"limit_except" blocks.

*) Bugfix: in byte ranges processing.

</ChangeLog>

<ChangeLog with njs 0.3.2>

Core:

*) Feature: added support for template literals.

Thanks to 洪志道 (Hong Zhi Dao) and Artem S. Povalyukhin.

*) Feature: executing command from command line arguments.

*) Feature: added support for RegExp "groups" object (ES9).

*) Feature: added block scoped function definitions support.

*) Feature: added support for building with GNU Readline library.

*) Feature: made configurable "length", "name", and most of built-in

methods.

*) Feature: made all constructor properties configurable.

*) Bugfix: fixed Regexp.prototype.exec() for Unicode-only regexps.

*) Bugfix: fixed njs_vm_value_dump() for empty string values.

*) Bugfix: fixed RegExp constructor for regexp value arguments.

*) Bugfix: fixed walking over prototypes chain during iteration

over an object.

*) Bugfix: fixed overflow in Array.prototype.concat().

*) Bugfix: fixed length calculation for UTF-8 string with escape

characters.

*) Bugfix: fixed parsing surrogate pair presents as UTF-16 escape

sequences.

*) Bugfix: fixed processing asterisk quantifier for

String.prototype.match().

*) Bugfix: fixed Date() constructor with one argument.

*) Bugfix: fixed arrays expansion.

*) Bugfix: fixed heap-buffer-overflow in String.prototype.replace().

*) Bugfix: fixed heap-buffer-overflow in

String.prototype.lastIndexOf().

*) Bugfix: fixed regexp literals parsing with escaped backslash and

backslash in square brackets.

*) Bugfix: fixed regexp literals with lone closing brackets.

*) Bugfix: fixed uninitialized-memory-access in

Object.defineProperties().

*) Bugfix: fixed processing "*" quantifier for

String.prototype.replace().

*) Bugfix: fixed Array.prototype.slice() for UTF8-invalid byte

strings.

*) Bugfix: fixed String.prototype.split() for UTF8-invalid byte

strings.

*) Bugfix: fixed handling of empty block statements.

</ChangeLog>