buildtypes: add support for Makefiles with filename 'makefile'
buildtypes: add haskell module support
Merge remote-tracking branch 'ruester/for-marius'

* ruester/for-marius:
  buildtypes: add support for Makefiles with filename 'makefile'
Merge remote-tracking branch 'ruester/haskell'

* ruester/haskell:
  buildtypes: add haskell module support