Although for now, Micmac has only generic UCT, Metropolis-Hastings MCMC and Metropolis Coupled MCMC method and it's kind of trivial, I found it worthy of factoring out.
It's under the MIT licence.
It can be found at http://quotenil.com/git/?p=micmac.git;a=summary.
ASDF-install package (obsolete) http://quotenil.com/micmac/micmac-latest.tar.gz