Update react-scripts to depend on babel-loader@7.0.0-alpha.2

Author: pugnascotia

packages/react-scripts/package.json

@@ -27,7 +27,7 @@
     "babel-core": "6.23.1",
     "babel-eslint": "7.1.1",
     "babel-jest": "18.0.0",
-    "babel-loader": "6.3.2",
+    "babel-loader": "7.0.0-alpha.2",
     "babel-preset-react-app": "^2.1.1",
     "babel-runtime": "^6.20.0",
     "case-sensitive-paths-webpack-plugin": "1.1.4",