deps: Upgrade and move `codepointat` from `static/third` to `npm`

- Remove `codepointat` from `static/third` and fetch it from `npm`.
- Upgrade `codepointat` to 0.2.0.
- Bump up the `PROVISION_VERSION` to 4.1.

Part of #1709.

docs/THIRDPARTY

@@ -170,10 +170,6 @@ Files: static/third/marked/*
 Copyright: 2011-2013, Christopher Jeffrey
 License: Expat
 
-Files: static/third/string-prototype-codepointat/*
-Copyright: 2014 Mathias Bynens
-License: Expat
-
 Files: static/third/sockjs/sockjs-0.3.4.js
 Copyright: 2011-2012 VMware, Inc.
  2012 Douglas Crockford

frontend_tests/zjsunit/index.js

@@ -1,5 +1,5 @@
 global.assert = require('assert');
-require('third/string-prototype-codepointat/codepointat.js');
+require('node_modules/string.prototype.codepointat/codepointat.js');
 
 global.Dict = require('js/dict');
 global._ = require('third/underscore/underscore.js');

package.json

@@ -14,6 +14,7 @@
     "jquery": "1.12.1",
     "jquery-validation": "1.15.1",
     "plotly.js": "1.19.2",
+    "string.prototype.codepointat": "0.2.0",
     "webpack": "1.12.2",
     "winchan": "0.2.0",
     "zxcvbn": "4.4.1"

static/third/string-prototype-codepointat/codepointat.js

@@ -1,45 +0,0 @@
-/*! http://mths.be/codepointat v0.1.0 by @mathias */
-if (!String.prototype.codePointAt) {
-  (function () {
-    'use strict'; // needed to support `apply`/`call` with `undefined`/`null`
-    var codePointAt = function (position) {
-      if (this === null) {
-        throw TypeError();
-      }
-      var string = String(this);
-      var size = string.length;
-      // `ToInteger`
-      var index = position ? Number(position) : 0;
-      if (isNaN(index)) {
-        index = 0;
-      }
-      // Account for out-of-bounds indices:
-      if (index < 0 || index >= size) {
-        return undefined;
-      }
-      // Get the first code unit
-      var first = string.charCodeAt(index);
-      var second;
-      if ( // check if it’s the start of a surrogate pair
-        first >= 0xD800 && first <= 0xDBFF && // high surrogate
-        size > index + 1 // there is a next code unit
-      ) {
-        second = string.charCodeAt(index + 1);
-        if (second >= 0xDC00 && second <= 0xDFFF) { // low surrogate
-          // http://mathiasbynens.be/notes/javascript-encoding#surrogate-formulae
-          return (first - 0xD800) * 0x400 + second - 0xDC00 + 0x10000;
-        }
-      }
-      return first;
-    };
-    if (Object.defineProperty) {
-      Object.defineProperty(String.prototype, 'codePointAt', {
-        'value': codePointAt,
-        'configurable': true,
-        'writable': true
-      });
-    } else {
-      String.prototype.codePointAt = codePointAt;
-    }
-  }());
-}

version.py

@@ -1,2 +1,2 @@
 ZULIP_VERSION = "1.4.1+git"
-PROVISION_VERSION = '4.0'
+PROVISION_VERSION = '4.1'

zproject/settings.py

@@ -767,8 +767,8 @@ JS_SPECS = {
             'third/jquery-perfect-scrollbar/js/perfect-scrollbar.js',
             'third/lazyload/lazyload.js',
             'third/spectrum/spectrum.js',
-            'third/string-prototype-codepointat/codepointat.js',
             'third/sockjs/sockjs-0.3.4.js',
+            'node_modules/string.prototype.codepointat/codepointat.js',
             'node_modules/winchan/winchan.js',
             'third/handlebars/handlebars.runtime.js',
             'third/marked/lib/marked.js',