Add missing .babelrc and .flowconfig (#3298)

samples/js/.babelrc

@@ -0,0 +1,3 @@
+{
+  "presets": ["noms"]
+}

samples/js/.flowconfig

@@ -0,0 +1,20 @@
+[ignore]
+.*/node_modules/babel.*
+.*/node_modules/babylon/.*
+.*/node_modules/d3/.*
+.*/node_modules/fbjs/.*
+.*/node_modules/react/.*
+.*/node_modules/y18n/.*
+.*/node_modules/json5/.*
+
+[include]
+
+[libs]
+
+[options]
+unsafe.enable_getters_and_setters=true
+munge_underscores=true
+suppress_comment=\\(.\\|\n\\)*\\$FlowIssue: .+
+
+[version]
+^0.39.0

samples/js/graphiql/package.json

@@ -3,7 +3,7 @@
   "private": true,
   "license": "Apache-2.0",
   "scripts": {
-    "preinstall": "cp ../../../js/noms/.babelrc ../.eslintrc.js ../../../js/noms/.flowconfig .",
+    "preinstall": "cp ../.babelrc ../.eslintrc.js ../.flowconfig .",
     "prepublish": "yarn run build",
     "start": "python node_modules/@attic/webpack-config/run.py --src src/main.js --out out.js development",
     "build": "python node_modules/@attic/webpack-config/run.py --src src/main.js --out out.js production",