I was able to resolve the major bug reported by mauloop. Turns out a library had added a custom sort property to the Array object prototype. This custom function was then iterated anytime an array was used in a for (var x in keys) loop. Which broke a lot of stuff. A lot.
All patched, and I restructured my repository a bit. Now you can install the single-tid version from the example wiki, or install a node folder-style setup with all dependencies by downloading the Release *.zip file.
https://github.com/joshuafontany/TW5-JsonManglerPlugin/Best,
Joshua Fontany