Mod Spotlight by Danilus which explains how this version is used: https://www.youtube.com/watch?v=o-P7Y6Dm7_o
Important:
I had not much experience with HTML/Javascript when writing this app. It mostly looks ugly, is not very userfriendly and not bugfree. Hence I want to completly rewrite it, but I want to get some feedback and suggestions before. So please visit the forum thread and give your feedback. Otherwise the universal version will lack some features from the Android version. Minecraft Forum