Issue #2348843 - Switch to yarn and update dependencies

Author: markhalliwell

package.json

@@ -3,22 +3,22 @@
   "version": "8.3.0-dev",
   "private": true,
   "devDependencies": {
-    "bower": "~1.3.0",
-    "glob": "^5.0.14",
-    "grunt": "^0.4.5",
-    "grunt-contrib-clean": "^0.6.0",
+    "bower": "^1.8.2",
+    "glob": "^7.1.2",
+    "grunt": "^1.0.1",
+    "grunt-contrib-clean": "^1.1.0",
     "grunt-contrib-csslint": "^2.0.0",
-    "grunt-contrib-watch": "^0.6.1",
-    "grunt-githooks": "^0.3.1",
-    "inquirer": "^0.9.0",
-    "less": "^2.5.1",
+    "grunt-contrib-watch": "^1.0.0",
+    "grunt-githooks": "^0.6.0",
+    "inquirer": "^3.3.0",
+    "less": "^2.7.2",
     "less-plugin-autoprefix": "^1.4.2",
     "less-plugin-clean-css": "^1.5.1",
-    "load-grunt-config": "^0.17.2",
-    "queue": "^3.1.0",
-    "request": "^2.60.0",
+    "load-grunt-config": "^0.19.2",
+    "queue": "^4.4.1",
+    "request": "^2.83.0",
     "sync-exec": "^0.6.1",
-    "time-grunt": "^1.2.1"
+    "time-grunt": "^1.4.0"
   },
   "scripts": {
     "postinstall": "grunt install"
@@ -43,7 +43,7 @@
           ".githooks.js.hbs",
           "grunt/**/*"
         ],
-        "commands": "npm install",
+        "commands": "yarn",
         "matchAll": false
       }
     ],
@@ -55,7 +55,7 @@
           ".githooks.js.hbs",
           "grunt/**/*"
         ],
-        "commands": "npm install",
+        "commands": "yarn",
         "matchAll": false
       }
     ],