Add React & Babel dependencies; update .eslintrc to be nice about es6 syntax

Author: geoffp

.eslintrc

@@ -3,6 +3,13 @@
     "node": true,
     "builtin": true
   },
+  "parserOptions": {
+    "ecmaVersion": 6,
+    "sourceType": "module",
+    "ecmaFeatures": {
+      "jsx": true
+    }
+  },
   "globals": {},
   "rules": {
     "block-scoped-var": 0,

package.json

@@ -4,9 +4,13 @@
   "version": "0.1.0",
   "main": "lib/engine_react.js",
   "dependencies": {
+    "babel-core": "^6.17.0",
+    "babel-plugin-transform-es2015-modules-commonjs": "^6.16.0",
+    "babel-preset-react": "^6.16.0",
+    "react": "^15.3.2",
+    "react-dom": "^15.3.2"
   },
-  "devDependencies": {
-  },
+  "devDependencies": {},
   "keywords": [
     "Pattern Lab",
     "Atomic Web Design",