Linting and package tweak

.eslintrc.json

@@ -21,6 +21,7 @@
         "eqeqeq": [2, "always"],
         "one-var": [2, "never"],
         "comma-dangle": [2, "always-multiline"],
+        "spaced-comment": [2, "always"],
         "no-restricted-globals": [
             "error",
             {

package.json

@@ -9,12 +9,12 @@
     "style": "./dist/plyr.css",
     "devDependencies": {
         "babel-core": "^6.26.3",
-        "babel-eslint": "^8.2.3",
+        "babel-eslint": "^8.2.4",
         "babel-plugin-external-helpers": "^6.22.0",
         "babel-preset-env": "^1.7.0",
         "del": "^3.0.0",
-        "eslint": "^4.19.1",
-        "eslint-config-airbnb-base": "^12.1.0",
+        "eslint": "^5.0.0",
+        "eslint-config-airbnb-base": "^13.0.0",
         "eslint-config-prettier": "^2.9.0",
         "eslint-plugin-import": "^2.12.0",
         "git-branch": "^2.0.1",
@@ -38,7 +38,7 @@
         "gulp-uglify-es": "^1.0.4",
         "gulp-util": "^3.0.8",
         "postcss-custom-properties": "^7.0.0",
-        "prettier-eslint": "^8.8.1",
+        "prettier-eslint": "^8.8.2",
         "prettier-stylelint": "^0.4.2",
         "rollup-plugin-babel": "^3.0.4",
         "rollup-plugin-commonjs": "^9.1.3",