Fix npm link (#218)

* Bump top level dependencies

* Bump deps via `npm audit fix` in all packages

* Bump some dependencies in packages

* Bump prop-types across the board

* Bump eslint and airbnb config

lib/enzyme.js

@@ -2,4 +2,6 @@
 const Adapter = require('enzyme-adapter-react-16');
 const enzyme = require('enzyme');
 
+require('babel-polyfill');
+
 enzyme.configure({ adapter: new Adapter() });

package.json

@@ -21,24 +21,24 @@
     "url": "git@github.com:readme/api-explorer.git"
   },
   "devDependencies": {
-    "@babel/core": "^7.0.0-beta.55",
-    "@babel/preset-env": "^7.0.0-beta.55",
-    "@babel/preset-react": "^7.0.0-beta.55",
+    "@babel/core": "^7.4.4",
+    "@babel/preset-env": "^7.4.4",
+    "@babel/preset-react": "^7.0.0",
     "auto-changelog": "^1.10.2",
     "babel-core": "^7.0.0-bridge.0",
-    "babel-jest": "^23.4.2",
+    "babel-jest": "^24.8.0",
     "babel-loader": "^8.0.0-beta.4",
     "css-loader": "^1.0.0",
-    "enzyme": "^3.3.0",
+    "enzyme": "^3.9.0",
     "enzyme-adapter-react-16": "^1.3.0",
-    "eslint": "^3.19.0",
-    "eslint-config-airbnb": "^15.0.2",
-    "eslint-plugin-import": "^2.7.0",
+    "eslint": "^4.3.0",
+    "eslint-config-airbnb": "^15.1.0",
+    "eslint-config-prettier": "^4.3.0",
+    "eslint-plugin-import": "^2.17.2",
     "eslint-plugin-jsx-a11y": "^5.1.1",
-    "eslint-plugin-react": "^7.1.0",
+    "eslint-plugin-react": "^7.13.0",
     "gh-pages": "^1.1.0",
-    "jest": "^23.5.0",
-    "lerna": "^3.4.0",
+    "lerna": "^3.14.1",
     "style-loader": "^0.22.0",
     "uglify-es": "^3.2.1",
     "uglifyjs-webpack-plugin": "^1.2.3",
@@ -47,9 +47,10 @@
     "webpack-merge": "^4.1.1"
   },
   "dependencies": {
+    "acorn": "^6.1.1",
     "babel-polyfill": "^6.26.0",
     "livereactload": "^4.0.0-beta.2",
-    "prop-types": "^15.6.0",
+    "prop-types": "^15.7.2",
     "react": "^16.4.2",
     "react-dom": "^16.4.2",
     "react-hot-loader": "^3.1.3",