Add the CloudI API function shutdown to all external service programming languages to allow external services a way to have a successful shutdown without using the CloudI Service API services_remove

Author: okeuday

.travis.yml

@@ -1,9 +1,10 @@
 language: node_js
 node_js:
+  - "11"
+  - "10"
+  - "8"
   - "6"
-  - "6.1"
-  - "5.11"
-  - "4.1"
+  - "4"
   - "0.12"
   - "0.10"
 branches:

CloudI.js

@@ -3,7 +3,7 @@
 //
 // MIT License
 //
-// Copyright (c) 2014-2018 Michael Truog <mjtruog at protonmail dot com>
+// Copyright (c) 2014-2019 Michael Truog <mjtruog at protonmail dot com>
 //
 // Permission is hereby granted, free of charge, to any person obtaining a
 // copy of this software and associated documentation files (the "Software"),
@@ -1053,6 +1053,17 @@ CloudI.API.prototype.poll = function (callback, timeout) {
     }, 0);
 };
 
+CloudI.API.prototype.shutdown = function (callback, reason) {
+    callback = typeof callback !== 'undefined' ?
+               callback : function () {};
+    reason = typeof reason !== 'undefined' ?
+             reason : "";
+    this._poll_wait(function (API) {
+        API._send([new Erlang.OtpErlangAtom('shutdown'), reason]);
+        callback();
+    });
+};
+
 CloudI.API.prototype._text_key_value_parse = function (text) {
     var result = {};
     var data = text.toString('binary').split('\x00');

LICENSE

@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2014-2018 Michael Truog <mjtruog at protonmail dot com>
+Copyright (c) 2014-2019 Michael Truog <mjtruog at protonmail dot com>
 
 Permission is hereby granted, free of charge, to any person obtaining a
 copy of this software and associated documentation files (the "Software"),