For a quick introduction and overview of the package, see the Introduction tutorial (vignette).
The package is on GitHub and you can use the usual GitHub process to file bug reports, send feature requests, contribute updates and bug fixes, etc. If you have any comments or feedback, I very much welcome them. Please file a GitHub issue and let me know what you think.
This R package was developed by Andreas Handel and Cody Dailey. It is maintained Andreas Handel. A full list of contributors and a Bibtex entry for the citation can be found here.
This project was/is partially supported by NIH.