Update dependencies.

Close #14664.

package.json

@@ -31,21 +31,21 @@
   },
   "devDependencies": {
     "btoa": "~1.1.2",
-    "glob": "~4.0.5",
+    "glob": "~4.0.6",
     "grunt": "~0.4.5",
     "grunt-autoprefixer": "~1.0.1",
     "grunt-banner": "~0.2.3",
     "grunt-contrib-clean": "~0.6.0",
     "grunt-contrib-concat": "~0.5.0",
     "grunt-contrib-connect": "~0.8.0",
-    "grunt-contrib-copy": "~0.5.0",
+    "grunt-contrib-copy": "~0.6.0",
     "grunt-contrib-csslint": "~0.3.1",
     "grunt-contrib-cssmin": "~0.10.0",
     "grunt-contrib-jade": "~0.12.0",
     "grunt-contrib-jshint": "~0.10.0",
     "grunt-contrib-less": "~0.11.4",
     "grunt-contrib-qunit": "~0.5.2",
-    "grunt-contrib-uglify": "~0.5.1",
+    "grunt-contrib-uglify": "~0.6.0",
     "grunt-contrib-watch": "~0.6.1",
     "grunt-csscomb": "~3.0.0",
     "grunt-exec": "~0.4.6",