Nodejs native font subsetting

This release drops the python based fonttools dependency that was previously required to subset local font files.

netlify-plugin-subfont is now truly plug and play.

Big thanks to @papandreou and the team behind the harfbuzz subsetter for providing a webassembly version.

Cleaning up your configuration

The following configuration is no longer needed:

• requirements.txt containing fonttools, zopfli and brotli
• .env override setting PYTHON_VERSION

Node 8 deprecation

Fixes

• Update to subfont 5.0.0. Fixes #40 Fixes #43 (Peter Müller)

Netlify Build Public Beta Compatibility

Pull requests

• #22 Update Node.js to 10,12,13 (Renovate Bot)
• #20 Upgrade to latest version of Netlify Build (ehmicky)
• #16 Update installation instructions (Jessica Parsons)
• #11 Update nyc to the latest version 🚀 (greenkeeper[bot])
• #12 Update eslint-plugin-node to the latest version 🚀 (greenkeeper[bot])

Commits to master

• Activate renovate (Peter Müller)
• Update to prettier 2 and use eslint to run it (Peter Müller)
• Switch netlify config from deprecated yaml to toml (Peter Müller)
• Update dependencies and run audit (Peter Müller)