Update devDependencies and gems.

Gemfile.lock

 GEM
   remote: https://rubygems.org/
   specs:
-    addressable (2.6.0)
-      public_suffix (>= 2.0.2, < 4.0)
+    addressable (2.7.0)
+      public_suffix (>= 2.0.2, < 5.0)
     colorator (1.1.0)
     concurrent-ruby (1.1.5)
     em-websocket (0.5.1)
@@ -53,11 +53,11 @@ GEM
       mini_portile2 (~> 2.4.0)
     pathutil (0.16.2)
       forwardable-extended (~> 2.6)
-    public_suffix (3.1.1)
+    public_suffix (4.0.1)
     rb-fsevent (0.10.3)
     rb-inotify (0.10.0)
       ffi (~> 1.0)
-    rouge (3.9.0)
+    rouge (3.11.0)
     ruby_dep (1.5.0)
     safe_yaml (1.0.5)
     sass (3.7.4)

package.json

@@ -73,7 +73,7 @@
     "docs-lint": "node build/vnu-jar.js",
     "docs-serve": "bundle exec jekyll serve",
     "docs-serve-only": "npm run docs-serve -- --skip-initial-build --no-watch",
-    "update-deps": "ncu -a -x \"eslint,karma,karma-browserstack-launcher,karma-qunit,stylelint\" && npm update && bundle update && cross-env-shell echo Manually update \\\"site/docs/$npm_package_version_short/assets/js/vendor/\\\"",
+    "update-deps": "ncu -a -x \"cross-env,eslint,karma,karma-browserstack-launcher,karma-qunit,stylelint,stylelint-config-twbs-bootstrap\" && npm update && bundle update && cross-env-shell echo Manually update \\\"site/docs/$npm_package_version_short/assets/js/vendor/\\\"",
     "release": "npm-run-all dist release-sri release-zip docs-production",
     "release-sri": "node build/generate-sri.js",
     "release-version": "node build/change-version.js",
@@ -104,10 +104,10 @@
     "popper.js": "^1.15.0"
   },
   "devDependencies": {
-    "@babel/cli": "^7.5.5",
-    "@babel/core": "^7.5.5",
-    "@babel/plugin-proposal-object-rest-spread": "^7.5.5",
-    "@babel/preset-env": "^7.5.5",
+    "@babel/cli": "^7.6.2",
+    "@babel/core": "^7.6.2",
+    "@babel/plugin-proposal-object-rest-spread": "^7.6.2",
+    "@babel/preset-env": "^7.6.2",
     "autoprefixer": "^9.6.1",
     "babel-eslint": "^10.0.3",
     "babel-plugin-istanbul": "^5.2.0",
@@ -115,7 +115,7 @@
     "bundlesize": "^0.18.0",
     "clean-css-cli": "^4.3.0",
     "coveralls": "^3.0.6",
-    "cross-env": "^5.2.0",
+    "cross-env": "^5.2.1",
     "eslint": "^5.16.0",
     "find-unused-sass-variables": "^0.5.0",
     "glob": "^7.1.4",
@@ -132,22 +132,22 @@
     "karma-qunit": "^3.1.3",
     "karma-sinon": "^1.0.5",
     "node-sass": "^4.12.0",
-    "nodemon": "^1.19.1",
+    "nodemon": "^1.19.2",
     "npm-run-all": "^4.1.5",
     "popper.js": "^1.15.0",
     "postcss-cli": "^6.1.3",
     "qunit": "^2.9.2",
-    "rollup": "^1.20.2",
+    "rollup": "^1.21.4",
     "rollup-plugin-babel": "^4.3.3",
-    "rollup-plugin-commonjs": "^10.0.2",
+    "rollup-plugin-commonjs": "^10.1.0",
     "rollup-plugin-node-resolve": "^5.2.0",
     "shelljs": "^0.8.3",
     "shx": "^0.3.2",
-    "sinon": "^7.4.1",
+    "sinon": "^7.5.0",
     "stylelint": "^9.10.1",
-    "stylelint-config-twbs-bootstrap": "^0.4.0",
+    "stylelint-config-twbs-bootstrap": "^0.5.0",
     "uglify-js": "^3.6.0",
-    "vnu-jar": "19.6.7"
+    "vnu-jar": "19.9.4"
   },
   "engines": {
     "node": ">=6"