Update devDependencies.

js/tests/vendor/qunit.css

 /*!
- * QUnit 2.4.0
+ * QUnit 2.4.1
  * https://qunitjs.com/
  *
  * Copyright jQuery Foundation and other contributors
  * Released under the MIT license
  * https://jquery.org/license
  *
- * Date: 2017-07-08T15:20Z
+ * Date: 2017-10-22T05:12Z
  */
 
 /** Font Family and Sizes */

js/tests/vendor/qunit.js

 /*!
- * QUnit 2.4.0
+ * QUnit 2.4.1
  * https://qunitjs.com/
  *
  * Copyright jQuery Foundation and other contributors
  * Released under the MIT license
  * https://jquery.org/license
  *
- * Date: 2017-07-08T15:20Z
+ * Date: 2017-10-22T05:12Z
  */
 (function (global$1) {
   'use strict';
 
-  global$1 = global$1 && 'default' in global$1 ? global$1['default'] : global$1;
+  global$1 = 'default' in global$1 ? global$1['default'] : global$1;
 
   var window = global$1.window;
   var self$1 = global$1.self;
@@ -1388,6 +1388,13 @@
   		this.async = false;
   		this.expected = 0;
   	} else {
+  		if (typeof this.callback !== "function") {
+  			var method = this.todo ? "todo" : "test";
+
+  			// eslint-disable-next-line max-len
+  			throw new TypeError("You must provide a function as a test callback to QUnit." + method + "(\"" + settings.testName + "\")");
+  		}
+
   		this.assert = new Assert(this);
   	}
   }
@@ -1697,13 +1704,16 @@
   			result: resultInfo.result,
   			message: resultInfo.message,
   			actual: resultInfo.actual,
-  			expected: resultInfo.expected,
   			testId: this.testId,
   			negative: resultInfo.negative || false,
   			runtime: now() - this.started,
   			todo: !!this.todo
   		};
 
+  		if (hasOwn.call(resultInfo, "expected")) {
+  			details.expected = resultInfo.expected;
+  		}
+
   		if (!resultInfo.result) {
   			source = resultInfo.source || sourceFromStacktrace();
 
@@ -1729,7 +1739,6 @@
   			result: false,
   			message: message || "error",
   			actual: actual || null,
-  			expected: null,
   			source: source
   		});
   	},
@@ -2650,7 +2659,7 @@
   QUnit.isLocal = !(defined.document && window.location.protocol !== "file:");
 
   // Expose the current QUnit version
-  QUnit.version = "2.4.0";
+  QUnit.version = "2.4.1";
 
   function createModule(name, testEnvironment, modifiers) {
   	var parentModule = moduleStack.length ? moduleStack.slice(-1)[0] : null;
@@ -3284,7 +3293,8 @@
   			// Skip inherited or undefined properties
   			if (hasOwn.call(params, key) && params[key] !== undefined) {
 
-  				// Output a parameter for each value of this key (but usually just one)
+  				// Output a parameter for each value of this key
+  				// (but usually just one)
   				arrValue = [].concat(params[key]);
   				for (i = 0; i < arrValue.length; i++) {
   					querystring += encodeURIComponent(key);
@@ -3705,7 +3715,8 @@
   		if (config.altertitle && document$$1.title) {
 
   			// Show ✖ for good, ✔ for bad suite result in title
-  			// use escape sequences in case file gets loaded with non-utf-8-charset
+  			// use escape sequences in case file gets loaded with non-utf-8
+  			// charset
   			document$$1.title = [stats.failedTests ? "\u2716" : "\u2714", document$$1.title.replace(/^[\u2714\u2716] /i, "")].join(" ");
   		}
 
@@ -3743,7 +3754,7 @@
   		if (running) {
   			bad = QUnit.config.reorder && details.previousFailure;
 
-  			running.innerHTML = (bad ? "Rerunning previously failed test: <br />" : "Running: <br />") + getNameHtml(details.name, details.module);
+  			running.innerHTML = [bad ? "Rerunning previously failed test: <br />" : "Running: <br />", getNameHtml(details.name, details.module)].join("");
   		}
   	});
 
@@ -4874,7 +4885,9 @@
   				line = text.substring(lineStart, lineEnd + 1);
   				lineStart = lineEnd + 1;
 
-  				if (lineHash.hasOwnProperty ? lineHash.hasOwnProperty(line) : lineHash[line] !== undefined) {
+  				var lineHashExists = lineHash.hasOwnProperty ? lineHash.hasOwnProperty(line) : lineHash[line] !== undefined;
+
+  				if (lineHashExists) {
   					chars += String.fromCharCode(lineHash[line]);
   				} else {
   					chars += String.fromCharCode(lineArrayLength);

package-lock.json

@@ -65,14 +65,6 @@
         "lodash": "4.17.4",
         "source-map": "0.5.7",
         "trim-right": "1.0.1"
-      },
-      "dependencies": {
-        "jsesc": {
-          "version": "2.5.1",
-          "resolved": "https://registry.npmjs.org/jsesc/-/jsesc-2.5.1.tgz",
-          "integrity": "sha1-5CGiqOINawgZ3yiQj3glJrlt0f4=",
-          "dev": true
-        }
       }
     },
     "@babel/helper-annotate-as-pure": {
@@ -3338,9 +3330,15 @@
       "dev": true
     },
     "jsesc": {
-      "version": "0.5.0",
-      "resolved": "https://registry.npmjs.org/jsesc/-/jsesc-0.5.0.tgz",
-      "integrity": "sha1-597mbjXW/Bb3EP6R1c9p9w8IkR0=",
+      "version": "2.5.1",
+      "resolved": "https://registry.npmjs.org/jsesc/-/jsesc-2.5.1.tgz",
+      "integrity": "sha1-5CGiqOINawgZ3yiQj3glJrlt0f4=",
+      "dev": true
+    },
+    "json-parse-better-errors": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/json-parse-better-errors/-/json-parse-better-errors-1.0.1.tgz",
+      "integrity": "sha512-xyQpxeWWMKyJps9CuGJYeng6ssI5bpqS9ltQpdVQ90t4ql6NdnxFKh95JcRt2cun/DjMVNrdjniLPuMA69xmCw==",
       "dev": true
     },
     "json-parse-helpfulerror": {
@@ -3813,40 +3811,11 @@
         "mimic-fn": "1.1.0"
       }
     },
-    "memory-streams": {
-      "version": "0.1.2",
-      "resolved": "https://registry.npmjs.org/memory-streams/-/memory-streams-0.1.2.tgz",
-      "integrity": "sha1-Jz/3d6tg/sWZsRY1UlUoLMosUMI=",
-      "dev": true,
-      "requires": {
-        "readable-stream": "1.0.34"
-      },
-      "dependencies": {
-        "isarray": {
-          "version": "0.0.1",
-          "resolved": "https://registry.npmjs.org/isarray/-/isarray-0.0.1.tgz",
-          "integrity": "sha1-ihis/Kmo9Bd+Cav8YDiTmwXR7t8=",
-          "dev": true
-        },
-        "readable-stream": {
-          "version": "1.0.34",
-          "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-1.0.34.tgz",
-          "integrity": "sha1-Elgg40vIQtLyqq+v5MKRbuMsFXw=",
-          "dev": true,
-          "requires": {
-            "core-util-is": "1.0.2",
-            "inherits": "2.0.3",
-            "isarray": "0.0.1",
-            "string_decoder": "0.10.31"
-          }
-        },
-        "string_decoder": {
-          "version": "0.10.31",
-          "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-0.10.31.tgz",
-          "integrity": "sha1-YuIDvEF2bGwoyfyEMB2rHFMQ+pQ=",
-          "dev": true
-        }
-      }
+    "memorystream": {
+      "version": "0.3.1",
+      "resolved": "https://registry.npmjs.org/memorystream/-/memorystream-0.3.1.tgz",
+      "integrity": "sha1-htcJCzDORV1j+64S3aUaR93K+bI=",
+      "dev": true
     },
     "meow": {
       "version": "3.7.0",
@@ -4217,20 +4186,64 @@
       "dev": true
     },
     "npm-run-all": {
-      "version": "4.1.1",
-      "resolved": "https://registry.npmjs.org/npm-run-all/-/npm-run-all-4.1.1.tgz",
-      "integrity": "sha512-qrmqqaJa+REbzUTIL/mHfTdgwz+gL1xUezY/ueyLa7GISZ4T3h0CH8D2r6AaZdCYN2unu7PzspP0ofpXla1ftg==",
+      "version": "4.1.2",
+      "resolved": "https://registry.npmjs.org/npm-run-all/-/npm-run-all-4.1.2.tgz",
+      "integrity": "sha512-Z2aRlajMK4SQ8u19ZA75NZZu7wupfCNQWdYosIi8S6FgBdGf/8Y6Hgyjdc8zU2cYmIRVCx1nM80tJPkdEd+UYg==",
       "dev": true,
       "requires": {
         "ansi-styles": "3.2.0",
         "chalk": "2.3.0",
         "cross-spawn": "5.1.0",
-        "memory-streams": "0.1.2",
+        "memorystream": "0.3.1",
         "minimatch": "3.0.4",
         "ps-tree": "1.1.0",
-        "read-pkg": "2.0.0",
+        "read-pkg": "3.0.0",
         "shell-quote": "1.6.1",
         "string.prototype.padend": "3.0.0"
+      },
+      "dependencies": {
+        "load-json-file": {
+          "version": "4.0.0",
+          "resolved": "https://registry.npmjs.org/load-json-file/-/load-json-file-4.0.0.tgz",
+          "integrity": "sha1-L19Fq5HjMhYjT9U62rZo607AmTs=",
+          "dev": true,
+          "requires": {
+            "graceful-fs": "4.1.11",
+            "parse-json": "4.0.0",
+            "pify": "3.0.0",
+            "strip-bom": "3.0.0"
+          }
+        },
+        "parse-json": {
+          "version": "4.0.0",
+          "resolved": "https://registry.npmjs.org/parse-json/-/parse-json-4.0.0.tgz",
+          "integrity": "sha1-vjX1Qlvh9/bHRxhPmKeIy5lHfuA=",
+          "dev": true,
+          "requires": {
+            "error-ex": "1.3.1",
+            "json-parse-better-errors": "1.0.1"
+          }
+        },
+        "path-type": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/path-type/-/path-type-3.0.0.tgz",
+          "integrity": "sha512-T2ZUsdZFHgA3u4e5PfPbjd7HDDpxPnQb5jN0SrDsjNSuVXHJqtwTnWqG0B1jZrgmJ/7lj1EmVIByWt1gxGkWvg==",
+          "dev": true,
+          "requires": {
+            "pify": "3.0.0"
+          }
+        },
+        "read-pkg": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/read-pkg/-/read-pkg-3.0.0.tgz",
+          "integrity": "sha1-nLxoaXj+5l0WwA4rGcI3/Pbjg4k=",
+          "dev": true,
+          "requires": {
+            "load-json-file": "4.0.0",
+            "normalize-package-data": "2.4.0",
+            "path-type": "3.0.0"
+          }
+        }
       }
     },
     "npm-run-path": {
@@ -5442,6 +5455,14 @@
       "dev": true,
       "requires": {
         "jsesc": "0.5.0"
+      },
+      "dependencies": {
+        "jsesc": {
+          "version": "0.5.0",
+          "resolved": "https://registry.npmjs.org/jsesc/-/jsesc-0.5.0.tgz",
+          "integrity": "sha1-597mbjXW/Bb3EP6R1c9p9w8IkR0=",
+          "dev": true
+        }
       }
     },
     "remove-trailing-separator": {