- Linting (ESLint): Update polyfills to new compat rules of

eslint-config-ash-nazg and adhere to new rules (prefer `for-of`
  (or array methods) to `for`, catch preferred `includes` to `indexOf`);
  avoid `no-zero-fractions` rule for now
- npm: Update devDeps (removing one unneeded)

package.json

@@ -76,21 +76,21 @@
   ],
   "dependencies": {},
   "devDependencies": {
-    "@babel/core": "^7.3.4",
+    "@babel/core": "^7.4.0",
     "@babel/node": "^7.2.2",
-    "@babel/plugin-transform-modules-commonjs": "^7.2.0",
-    "@babel/polyfill": "^7.2.5",
-    "@babel/preset-env": "^7.3.4",
+    "@babel/plugin-transform-modules-commonjs": "^7.4.0",
+    "@babel/polyfill": "^7.4.0",
+    "@babel/preset-env": "^7.4.2",
     "@mysticatea/eslint-plugin": "^9.0.1",
     "axe-testcafe": "^1.1.0",
     "babel-plugin-transform-object-rest-spread": "^7.0.0-beta.3",
-    "eslint": "5.15.2",
-    "eslint-config-ash-nazg": "0.5.0",
+    "eslint": "5.16.0",
+    "eslint-config-ash-nazg": "1.0.2",
     "eslint-config-standard": "12.0.0",
-    "eslint-plugin-compat": "^2.7.0",
+    "eslint-plugin-compat": "^3.1.0",
     "eslint-plugin-eslint-comments": "^3.1.1",
     "eslint-plugin-import": "2.16.0",
-    "eslint-plugin-jsdoc": "^4.4.2",
+    "eslint-plugin-jsdoc": "^4.6.0",
     "eslint-plugin-markdown": "^1.0.0",
     "eslint-plugin-no-use-extend-native": "^0.4.0",
     "eslint-plugin-node": "8.0.1",
@@ -98,7 +98,7 @@
     "eslint-plugin-qunit": "^4.0.0",
     "eslint-plugin-standard": "4.0.0",
     "eslint-plugin-testcafe": "^0.2.1",
-    "eslint-plugin-unicorn": "^7.1.0",
+    "eslint-plugin-unicorn": "^8.0.1",
     "find-in-files": "^0.5.0",
     "imageoptim-cli": "^2.3.5",
     "jamilih": "^0.44.0",
@@ -112,15 +112,14 @@
     "qunit": "^2.9.2",
     "remark-cli": "^6.0.1",
     "remark-lint-ordered-list-marker-value": "^1.0.2",
-    "rollup": "1.6.0",
+    "rollup": "1.7.4",
     "rollup-plugin-babel": "^4.3.2",
-    "rollup-plugin-commonjs": "^9.2.1",
-    "rollup-plugin-json": "^3.1.0",
+    "rollup-plugin-commonjs": "^9.2.2",
     "rollup-plugin-node-builtins": "^2.1.2",
     "rollup-plugin-node-resolve": "^4.0.1",
     "rollup-plugin-re": "^1.0.7",
     "rollup-plugin-terser": "^4.0.4",
-    "sinon": "^7.2.7",
+    "sinon": "^7.3.1",
     "sinon-test": "^2.4.0",
     "stackblur-canvas": "^2.2.0",
     "testcafe": "^1.1.0"