Hi, and my apologize for my long absence...
Cumulus is not really dead, but certainly obsolete in few time. I am working hard on a new project factoring good ideas of Cumulus which should be called Mona, always open source, with the support of multiple protocols, and with less dependencies by this way (using C++11 instead of Poco).
As soon as I publish it on github I come back to announce it here, and to see if I continue a Cumulus support or if Mona can replace advantageously Cumulus for your need.