An in-range update of estraverse is breaking the build 🚨

## The dependency [estraverse](https://github.com/estools/estraverse) was updated from `4.2.0` to `4.3.0`.

🚨 [View failing branch](https://github.com/aethant/merino/compare/master...aethant:greenkeeper%2Festraverse-4.3.0).

This version is **covered** by your **current version range** and after updating it in your project **the build failed**.

estraverse is a direct dependency of this project, and **it is very likely causing it to break**. If other packages depend on yours, this update is probably also breaking those in turn.

Status Details

- ❌ **continuous-integration/travis-ci/push:** The Travis CI build failed ([Details](https://travis-ci.org/aethant/merino/builds/571555689?utm_source=github_status&utm_medium=notification)).

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Commits

The new version differs by 9 commits.

• 54d608c Version 4.3.0


• 7fc4475 Support dynamic import (#100)


• 6ebdf08 Configure babel to transpile for Node.js 4 (#93)


• 67ecd9f Remove unused functions (#94)


• ef2fd31 Build: use babel-preset-env. (#89)


• 4600574 Remove support for Node.js versions < 4


• e4f4ad8 Add .babelrc into .npmignore (#87)


• b42c94b change travis badge to SVG (#81)


• 840be94 updated package gulp-tag-version from 1.2.1 to 1.3.0 (#86)

See the full diff

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