chore: remove 2015 preset and add env

[hozefaj]

Is there any requirement in setting a specific set of targets?

[timdorr]

We should still target IE11 support. If not, I would argue that warrants a major bump.

[hozefaj]

@timdorr So what's the recommendation, I agree that dropping ie 11 support should warrant a major version bump.

But on the other hand, supporting ie11 also dings everyone else that use browsers that have over the air updates.

[timdorr]

For the moment, I would include IE11. We can revisit the config for the next major release.

[hozefaj]

https://babeljs.io/docs/en/babel-preset-env#targets

[hozefaj]

@timdorr I have added ie11 as a target. Also removed the lock file. Best that a new lock file is generated before a new version of the package is published.

[timdorr]

No, please include the lock file. That shows exactly which deps to install.

[hozefaj]

No, please include the lock file. That shows exactly which deps to install.

Done, added the package.json-lock file to the PR

[timdorr]

Excellent. Thank you!