It's called Valentina:
http://valentinaproject.bitbucket.org/ (it's a female name in Russia, Ukraine and supposedly a lot of other countries). Judging by the site, the project is very much alive with healthy monthly number of commits. I've never used MD and have no idea what it does, but Valentina is a program for creating patterns for clothes. It's very specialized and has a very steep learning curve (I for one couldn't teach myself to use it), but if you're a clothing specialist it will probably be quite handy. It has some relevance for MH project because of its feature of exporting patterns into .obj, but there's still a lot that has to be done before those would be usable for MH clothes (one notable issue is creating a well-formed pure quad mesh out of them).