fix: Webpack broken by AJV update

Lock the version of AJV for now, until issue is resolved
webpack/webpack#8768
ajv-validator/ajv#941

package.json

@@ -32,6 +32,7 @@
     "*.snap",
     "dist/**",
     "lib/**",
+    "example/**",
     "webpack.config.js"
   ],
   "scripts": {
@@ -101,7 +102,6 @@
     "@babel/core": "^7.2.2",
     "@babel/plugin-proposal-class-properties": "^7.2.3",
     "@babel/plugin-transform-runtime": "^7.2.0",
-    "@babel/polyfill": "^7.2.5",
     "@babel/preset-env": "^7.2.3",
     "@babel/preset-flow": "^7.0.0",
     "@babel/preset-react": "^7.0.0",
@@ -150,6 +150,7 @@
     "typescript-eslint-parser": "^22.0.0"
   },
   "resolutions": {
+    "ajv": "6.6.1",
     "@types/react": "16.8.2"
   }
-}
+}

yarn.lock

@@ -766,14 +766,6 @@
     "@babel/helper-regex" "^7.0.0"
     regexpu-core "^4.1.3"
 
-"@babel/polyfill@^7.2.5":
-  version "7.2.5"
-  resolved "https://registry.yarnpkg.com/@babel/polyfill/-/polyfill-7.2.5.tgz#6c54b964f71ad27edddc567d065e57e87ed7fa7d"
-  integrity sha512-8Y/t3MWThtMLYr0YNC/Q76tqN1w30+b0uQMeFUYauG2UGTR19zyUtFrAzT23zNtBxPp+LbE5E/nwV/q/r3y6ug==
-  dependencies:
-    core-js "^2.5.7"
-    regenerator-runtime "^0.12.0"
-
 "@babel/preset-env@7.1.0":
   version "7.1.0"
   resolved "https://registry.yarnpkg.com/@babel/preset-env/-/preset-env-7.1.0.tgz#e67ea5b0441cfeab1d6f41e9b5c79798800e8d11"
@@ -1790,10 +1782,10 @@ ajv-keywords@^3.1.0:
   resolved "https://registry.yarnpkg.com/ajv-keywords/-/ajv-keywords-3.3.0.tgz#cb6499da9b83177af8bc1732b2f0a1a1a3aacf8c"
   integrity sha512-CMzN9S62ZOO4sA/mJZIO4S++ZM7KFWzH3PPWkveLhy4OZ9i1/VatgwWMD46w/XbGCBy7Ye0gCk+Za6mmyfKK7g==
 
-ajv@^6.1.0, ajv@^6.5.3, ajv@^6.5.5, ajv@^6.6.1:
-  version "6.9.0"
-  resolved "https://registry.yarnpkg.com/ajv/-/ajv-6.9.0.tgz#06458dbfb789366d703e308f180e0db195b7f2fa"
-  integrity sha512-VsK2jpqRno3Hn+at4NGtBRpR5q3OW7n5INrTKqENDNQJB99DXATQEVHlnoD1BA7Uo/qGO+ijGA/vgSAlxP9E4A==
+ajv@6.6.1, ajv@^6.1.0, ajv@^6.5.3, ajv@^6.5.5, ajv@^6.6.1:
+  version "6.6.1"
+  resolved "https://registry.yarnpkg.com/ajv/-/ajv-6.6.1.tgz#6360f5ed0d80f232cc2b294c362d5dc2e538dd61"
+  integrity sha512-ZoJjft5B+EJBjUyu9C9Hc0OZyPZSSlOF+plzouTrg6UlA8f+e/n8NIgBFG/9tppJtpPWfthHakK7juJdNDODww==
   dependencies:
     fast-deep-equal "^2.0.1"
     fast-json-stable-stringify "^2.0.0"