Update devDependencies and gems.

package.json

@@ -101,7 +101,7 @@
     "@babel/core": "7.0.0-rc.1",
     "@babel/plugin-proposal-object-rest-spread": "7.0.0-rc.1",
     "@babel/preset-env": "7.0.0-rc.1",
-    "autoprefixer": "^9.1.1",
+    "autoprefixer": "^9.1.2",
     "babel-eslint": "9.0.0-beta.3",
     "babel-plugin-istanbul": "^5.0.1",
     "broken-link-checker": "^0.7.8",
@@ -109,7 +109,7 @@
     "clean-css-cli": "^4.2.1",
     "coveralls": "^3.0.2",
     "cross-env": "^5.2.0",
-    "eslint": "^5.3.0",
+    "eslint": "^5.4.0",
     "glob": "^7.1.2",
     "htmllint-cli": "^0.0.7",
     "http-server": "^0.11.1",
@@ -126,7 +126,7 @@
     "npm-run-all": "^4.1.3",
     "popper.js": "^1.14.4",
     "postcss-cli": "^6.0.0",
-    "qunit": "^2.6.1",
+    "qunit": "^2.6.2",
     "rollup": "^0.64.1",
     "rollup-plugin-babel": "4.0.0-beta.8",
     "rollup-plugin-node-resolve": "^3.3.0",
@@ -134,7 +134,7 @@
     "shx": "^0.3.2",
     "sinon": "^6.1.5",
     "sri-toolbox": "^0.2.0",
-    "stylelint": "^9.4.0",
+    "stylelint": "^9.5.0",
     "stylelint-config-recommended-scss": "^3.2.0",
     "stylelint-config-standard": "^18.2.0",
     "stylelint-order": "^1.0.0",
@@ -211,7 +211,7 @@
     "dependencies": {},
     "peerDependencies": {
       "jquery": "1.9.1 - 3",
-      "popper.js": "^1.14.1"
+      "popper.js": "^1.14.4"
     }
   }
 }