Misc. npm and testing updates/tweaks

brettz9 commented 4 years ago

Travis: Remove old versions; add 12, 14, 16, 17
npm: Add recommended bugs, keywords, dependencies and use author/contributors
npm: Update devDeps, and switch to Babel 7/preset-env
npm: Use simple run script syntax
npm: Drop package-lock.json in favor of npmrc for consistency with other estools projects
Maintenance: Add .editorconfig
Maintenance: Drop use of gulpfile
Update: Mocha API
Testing: Add nyc
Testing: Use chai/register-expect
Testing: Drop bundled esprima in favor of using versioned
Testing: Update espree API to supply sourceType/ecmaVersion
Testing: Enable espree for dynamic import and adjust test expectation to take into account full Program context
Docs: Use more modern syntax in examples

This would still need a final manual check against old versions, but should otherwise be ready for review.

brettz9 commented 3 years ago

@michaelficarra : Would you have time for a review on this?

sanex3339 commented 3 years ago

estools / estraverse