* Refactor document.js into a class
* Move public functions first
* Rename private functions
* Rename
* Rename argument
* Use instance of DocumentUtil
* Update tests
* Refactor
* Rename (test-)document.js to (test-)document-util.js
* Refactor manifest.json
* Change end-of-line convention for built plain-text files
* Ignore builds directory
* Mark the "dev" directory as using the node environment
* Create build script
* Register build scripts
* Remove old build script
* Fix 64x64 icon
* Add test to ensure manifest data is updated properly
* Update eslint to 7.5.0
* Update eslint-plugin-no-unsanitized to 3.1.2
* Update fake-indexeddb to 3.1.1
* Rename DictionaryImporter.import to .importDictionary
Conflicts with o-unsanitized/method