re-instate ghc-libs, ghc-rpm-macros-0.10.55 for automatic deps; tighten interpackage deps
    
    - ghc-rpm-macros-0.10.55 for automatic lib dependencies
    - ghc now requires ghc-devel with ver-rel
    - ghc-devel now require ghc with ver-rel
    - ghc-prof now requires ghc-devel with ver-rel
    - make devel and prof meta packages require subpackages with ver-rel
    - make ghc-*-devel subpackages require ghc with ver-rel
    - bring back ghc-libs to avoid yum resolver problems (#702934)
    - drop haddock obsoletes
    - use without_hscolour