Finally, I managed to setup a GitHub repository. From now on, the latest developer snapshot of my sjPlot-package will be published right here: https://github.com/sjPlot/devel.
Please post issues there, download the latest developer build for testing purposes or help developing the wiki-page with examples for package usage etc.
Btw, if somebody knows, why I can’t get GitHub running with RStudio, let me know… I always get this issue, which was already reported by other users. Currently, I’m using the GitHub.app to commit changes.
Strenge Jacke! 