update all dependencies, and update rollup build

[cellog]

A few big changes

• package-lock.json should definitely be included in the repo
• intl-messageformat should be a peer dep
• using new rollup, the umd/amd/iife builds are all generated in 1 build step.
• the newest intl-messageformat uses Intl's built-in locales, so no more locale loading. This is the reason I bumped to 2.0.0
• formatted the test with prettier, and re-organized the number format one to be a bit more readable

Checklist

• only relevant code is changed (make a diff before you submit the PR)
• run tests npm run test
• tests are included
• documentation is changed or added

[cellog]

fixes #30

[cellog]

@jamuhl it looks like travis is in a perpetual hang - the config probably needs to be updated to use Precise instead of xenial (can't do that in the PR)

[jamuhl]

Thank you for putting this all together and contributing.

Was published in [email protected]