Use dlist for  MapRep

Also make runTestsAndCoverage.sh usable
cabal is putting .mix files there for me.

It took me quite some time to figure out why coverage does not work, because of rm -rf $DIR line. I decided this script is outdated.

Maybe there are some kind of global cabal settings for hpc stuff? I haven't set any.

I think directory for .mix files can be set with ghc flag -hpcdir or something similar.