Update devDependencies.

package.json

@@ -83,37 +83,37 @@
     "@babel/cli": "7.0.0-beta.31",
     "@babel/core": "7.0.0-beta.31",
     "@babel/preset-env": "7.0.0-beta.31",
-    "autoprefixer": "^7.1.2",
+    "autoprefixer": "^7.1.6",
     "babel-eslint": "^8.0.2",
     "babel-plugin-transform-es2015-modules-strip": "^0.1.1",
-    "bundlesize": "^0.15.2",
-    "clean-css-cli": "^4.1.6",
-    "cross-env": "^5.0.5",
-    "eslint": "^4.2.0",
-    "eslint-plugin-compat": "^2.0.1",
+    "bundlesize": "^0.15.3",
+    "clean-css-cli": "^4.1.10",
+    "cross-env": "^5.1.1",
+    "eslint": "^4.11.0",
+    "eslint-plugin-compat": "^2.1.0",
     "htmllint-cli": "^0.0.6",
-    "jsunitsaucelabs": "^1.2.0",
-    "node-sass": "^4.5.3",
-    "nodemon": "^1.11.0",
-    "npm-run-all": "^4.0.2",
-    "phantomjs-prebuilt": "^2.1.14",
-    "popper.js": "^1.12.6",
-    "postcss-cli": "^4.1.0",
+    "jsunitsaucelabs": "^1.3.0",
+    "node-sass": "^4.6.0",
+    "nodemon": "^1.12.1",
+    "npm-run-all": "^4.1.2",
+    "phantomjs-prebuilt": "^2.1.16",
+    "popper.js": "^1.12.7",
+    "postcss-cli": "^4.1.1",
     "qunit-phantomjs-runner": "^2.3.0",
-    "qunitjs": "^2.4.0",
-    "rollup": "^0.51.1",
+    "qunitjs": "^2.4.1",
+    "rollup": "^0.51.5",
     "rollup-plugin-babel": "4.0.0-beta.0",
     "rollup-plugin-node-resolve": "^3.0.0",
     "shelljs": "^0.7.8",
     "shx": "^0.2.2",
-    "stylelint": "^8.1.1",
+    "stylelint": "^8.2.0",
     "stylelint-config-recommended-scss": "^2.0.0",
     "stylelint-config-standard": "^17.0.0",
     "stylelint-order": "^0.7.0",
     "stylelint-scss": "^2.1.0",
-    "uglify-js": "^3.0.24",
+    "uglify-js": "^3.1.9",
     "vnu-jar": "^17.11.1",
-    "workbox-build": "^2.0.1"
+    "workbox-build": "^2.1.1"
   },
   "engines": {
     "node": ">=6"