--scripts-version not working with forked react-scripts

[yesmeck]

According to @gaearon's tweet https://twitter.com/dan_abramov/status/774888111927091200

I forked react-scripts to another package named feeble-scripts and tried running create-react-app myapp --scripts-version feeble-scripts, because CRA reads react-scripts's package.json in https://github.com/facebookincubator/create-react-app/blob/master/global-cli/index.js#L149-L155, so the command fails end with Error: Cannot find module '/path/to/myapp/node_modules/react-scripts/package.json'.

[gaearon]

Apparently we broke this when we added the Node version check. Would you like to send a PR fixing this?