.babelrc within node_modules fail the build

[selfrefactor]

Choose one: is this a 🐛 bug report or 🙋 feature request?
🐛: Need to remove .babelrc within node_modules so it can work

I need to remove .babelrc of two libraries so Parcel can work.

🎛 Configuration (.babelrc, package.json, cli command)

🤔 Expected Behavior

It should work without removing .babelrc files

😯 Current Behavior

I see this in my 1234 port: 🚨 Build error, check the console for details.

In CLI I see this error:

Error message is very long so I give you only small part:

(node:24070) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled wi🚨  /home/just/cold/notify/node_modules/rambdax/dist/rambdax.esm.js: Unknown plugin "external-helpers" specifi
ed in "/home/just/cold/notify/node_modules/rambdax/.babelrc.env.development" at 0, attempted to resolve relat    at /home/just/cold/notify/node_modules/babel-core/lib/transformation/file/options/option-manager.js:180:17
    at Array.map (<anonymous>)
    at Function.normalisePlugins (/home/just/cold/notify/node_modules/babel-core/lib/transformation/file/options/option-manager.js:158:20)

💁 Possible Solution

🔦 Context

💻 Code Sample

Link to repo where the bug is visible

🌍 Your Environment

Software	Version(s)
Parcel	latest
Node	9.3.0
Yarn	1.3.2
Operating System	Ubuntu16.04

[devongovett]

See #13. There is a WIP PR #559 to solve this.