* Add 'remove' and 'splice' actions
* Destructure
* Clone values applied to the schema
* Move manifest modifications
* Use clone
* Fix destructure
* Add support for inheritance
* Create build function
* Add createVariantManifest
* Add support for command line arguments
* Enable argument passing when using the build scripts
* 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