- Uglify was really slow and clunky, so replaced with terser which is fast and simple
- Ensured test cleanup works properly so we can be sure about the state of files during tests
- Changed the output from being the absolute path to just the "dest" value, as that is much more useful as absolute paths include local machine path names
- Fixed async/await issue that got the whole thing working 100%
- wired up a basic minification package
- accepts config for css or js files and can concat and minify them into a single file for each type
- this will be used for generating merged css and js files for various cards, controlled by theme config
