Merge pull request #66 from kawwong/npm-audit

Update jest to remove dependency vulnerability

package.json

@@ -18,7 +18,7 @@
     "@babel/preset-react": "^7.0.0",
     "babel-core": "^7.0.0-bridge.0",
     "babel-eslint": "^10.0.1",
-    "babel-jest": "^23.6.0",
+    "babel-jest": "^24.1.0",
     "babel-loader": "^8.0.2",
     "clean-webpack-plugin": "^1.0.0",
     "copy-webpack-plugin": "^4.6.0",
@@ -35,7 +35,7 @@
     "file-loader": "^3.0.1",
     "html-webpack-plugin": "^3.2.0",
     "identity-obj-proxy": "^3.0.0",
-    "jest": "^23.6.0",
+    "jest": "^24.1.0",
     "prop-types": "^15.6.2",
     "react-test-renderer": "^16.7.0",
     "regenerator-runtime": "^0.13.1",