NW.js v0.13 釋出，Web 呼叫 Node 模組

　　OpenResty 1.9.7.4 釋出了。OpenResty (也稱為 ngx_openresty)是一個全功能的 Web 應用伺服器。它打包了標準的 Nginx 核心，很多的常用的第三方模組，以及它們的大多數依賴項。

　　透過眾多進行良好設計的 Nginx 模組，OpenResty 有效地把 Nginx 伺服器轉變為一個強大的 Web 應用伺服器，基於它開發人員可以使用 Lua 程式語言對 Nginx 核心以及現有的各種 Nginx C 模組進行指令碼程式設計，構建出可以處理一萬以上併發請求的極端高效能的 Web 應用。

　　更新記錄：

　　bugfix: ./configure: use of relative paths like "./nginx" in --prefix=PATH led to compilation errors. thanks Tao Huang for the report.

　　upgraded Lua Nginx Module to 0.10.2.

　　feature: the C implementation for set SSL private keys now supports non-RSA private keys as well. thanks Alessandro Ghedini for the patch.

　　feature: ngx.log() and print() now accept Lua tables with the __tostring metamethod.

　　feature: added new API, ngx.config.subsystem, which always takes the Lua string value "http" in this module.

　　feature: added new API function ngx.socket.stream() which is an alias to ngx.socket.tcp().

　　feature: added HTTP 2.0 support to ngx.req.http_version().

　　feature: this module can now be built as a "dynamic module" with NGINX 1.9.11+ via the--add-dynamic-module=PATH option of ./configure.

　　bugfix: balancer_by_lua* did not respect "lua_code_cache off". thanks XI WANG for the report and Dejiang Zhu for the patch.

　　bugfix: hot loop might happen when balancer_by_lua* was used with the keepalivedirective. thanks GhostZch for the report.

　　bugfix: balancer_by_lua* might crash the nginx worker when SSL (https) is used for upstream connections. thanks Alistair Wooldrige for the report.

　　bugfix: stream-typed cosockets: we did not set the "error" field of the ngx_connection_tobject which MIGHT lead to socket leaks.

　　bugfix: avoided a potential memory issue when the request handler is aborted prematurely (via ngx.exit, for example) while a light thread is still waiting on ngx.flush(true).

　　bugfix: we might not respond to client abort events when lua_check_client_abort is on.

　　bugfix: fixed the compiler warning "unused variable" when compiling with nginx cores older than 1.7.5 (exclusive). thanks Marc Neudert for the patch.

　　bugfix: fixed compilation errors with LibreSSL by disabling ssl_certificiate_by_lua* and some ngx.ssl API functions that are not supported by LibreSSL. thanks George Liu and Bret for the reports.

　　bugfix: fixed compilation errors with nginx 1.9.11+. thanks Charles R. Portwood II and Tomas Kvasnicka for the reports.

　　bugfix: fixed compatibility issues with other nginx modules loaded as "dynamic modules" in NGINX 1.9.11+.

　　bugfix: SSL: set error message on i2d_X509() failure as well. thanks Alessandro Ghedini for the patch.

　　bugfix: SSL: remove leading white space from error messages. thanks Alessandro Ghedini for the patch.

　　optimize: use lua_pushliteral() for string literals. thanks Tatsuhiko Kubo for the patch.

　　change: unmatched submatch captures are now set to false instead of nil in the captures table (named captures are not affected). thanks Julien Desgats for the patch.

　　change: ngx.req.get_post_args: returns error message instead of raising an exception when request body is in temp file. thanks yejingx for the patch.

　　change: ngx.shared.DICT: throws a Lua error when the exptime argument is invalid.

　　doc: documented that ngx.req.get_body_data() is available in the context of log_by_lua*. thanks YuanSheng Wang for the patch.

　　doc: added balancer_by_lua* and ssl_certificate_by_lua* to the context of some Lua API functions. thanks Dejiang Zhu for the patch.

　　doc: fixed the documentation of log_by_lua* which actually runs after nginx's access log handler.

　　doc: updated the documentation for ngx.req.discard_body() to reflect recent changes. now ignoring request bodies indeed trigger discarding the body upon request finalization.

　　doc: updated the docs of ngx.get_phase() for new Lua execution contexts. thanks Thibault Charbonnier for the patches.

　　doc: typo fix in sample configurations from othree.

　　doc: typo fix in sample configurations from Adam Malone.

　　doc: typo fix from Prayag Verma.

　　doc: typo fix from leemingtian.

　　upgraded Lua Resty Core Library to 0.1.5.

　　optimize: ngx.ssl: removed unnecessary request checks from the priv_key_pem_to_derand cert_pem_to_der functions to allow them to be used in more contexts. thanks Tom Thorogood for the patch.

　　bugfix: resty.core.regex: non-string values passed as string arguments might throw out Lua errors. thanks Robert Paprocki for the patch.

　　change: resty.core.shdict: throws out a Lua error when the exptime arg is invalid.

　　change: resty.core.regex: unmatched submatch captures are set to false instead ofnil in captures table. thanks Julien Desgats for the patch.

　　doc: typo fix from thefosk.

　　doc: typo fix from Anton Ovchinnikov.

　　upgraded Lua Upstream Nginx Module to 0.05.

　　feature: expose peer connection count as the "conns" Lua table field. thanks Justin Li for the patch.

　　feature: this module can now be built as a "dynamic module" with NGINX 1.9.11+ via the--add-dynamic-module=PATH option of ./configure. thanks Hiroaki Nakamura for the original patch.

　　doc: fixes from Justin Li.

　　upgraded Lua Resty Upstream Healthcheck Library to 0.04.

　　feature: added IPv6 address support in upstream peer names. thanks szelcsanyi for the patch.

　　feature: status_page(): now we mark those upstream blocks without any (live) health checkers so as to avoid potential confusions when the checker light threads were aborted due to some fatal errors.

　　refactor: various coding refactoring to improve code readability. thanks Thijs Schreijer and Dejiang Zhu for the patches.

　　optimize: minor Lua code improvements from Aapo Talvensaari.

　　doc: link fixes from Thijs Schreijer.

　　doc: fixed escaping issues in the configuration samples in the Synopsis section by migrating to the "*_by_lua_block {}" directives. thanks whatacold for the report.

　　upgraded Lua Resty DNS Library to 0.15.

　　feature: added reverse DNS utilities: reverse_query, arpa_str, and expand_ipv6_addr. thanks bjoe2k4 for the patch.

　　upgraded Resty CLI to 0.06.

　　feature: resty: added new options --http-include=PATH and --main-include=PATH to include user files in the auto-generated nginx.conf file. thanks Nils Nordman for the patch.

　　upgraded Set Misc Nginx Module to 0.30.

　　feature: this module can now be compiled as a dynamic module with NGINX 1.9.11+ via the --with-dynamic-module=PATH option of ./configure.

　　bugfix: fixed errors and warnings with C compilers without variadic macro support.

　　upgraded Array Var Nginx Module to 0.05.

　　feature: this module can now be compiled as a dynamic module with NGINX 1.9.11+ via the --with-dynamic-module=PATH option of ./configure.

　　bugfix: fixed errors and warnings with C compilers without variadic macro support.

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