Why remove umd_entry param from build-react-component & serve-react-demo?

[kirakik]

This issue is a:

• Question / support request

I noticed that you guys removed the option to add an entry point to the commands build-react-component and serve-react-demo, I was wondering why that was? I can be very practical for a component library to be able to bundle their components separately, and currently that doesn't seem possible without reverting to an older version of nwb.

Thank you