You need to have Lightning Launcher installed for this to work correctly:
All the texts in the app are in English
This app consists of a web viewer that lets you navigate through the wiki script repository of Lightning Launcher. When you are on a script page, click the download button and import it (optionally send it as text)
An app made by Lukas Morawietz and TrianguloY.
Google+ page of Lightning Launcher
You can check the source code here: