Rodger,
You are correct. I think that the Lumify project is not being actively maintained by anyone any more. I watch Lumify for updates regularly and haven’t seen any changes in the past half a year and there are even still open pull requests from almost a year ago.
A project that my company, V5 Analytics, works on is based on Lumify and is called Visallo and is actively developed. The website is www.visallo.com and the open-source component of the product is here: https://github.com/v5analytics/visallo.
--Ryan