Add missing dependencies

Author: ryanhefner

package.json

@@ -38,6 +38,7 @@
   },
   "devDependencies": {
     "babel-cli": "^6.24.1",
+    "babel-core": "^6.26.0",
     "babel-jest": "^22.4.1",
     "babel-plugin-dev-expression": "^0.2.1",
     "babel-plugin-external-helpers": "^6.22.0",
@@ -57,6 +58,7 @@
     "react": "^16.2.0",
     "react-dom": "^16.2.0",
     "react-test-renderer": "^16.2.0",
+    "regenerator-runtime": "^0.11.1",
     "rollup": "^0.57.0",
     "rollup-plugin-babel": "^3.0.3",
     "rollup-plugin-commonjs": "^9.1.0",