5517c1f new cabal-tweak-drop-dep and other merges from github

Authored and Committed by petersen 7 years ago
    new cabal-tweak-drop-dep and other merges from github
    
    - no longer use a topdir for subpackage building
    - only autopackage license if subpackaging
    - move uniq to ghc-pkg-wrapper
    - add macros.ghc-fedora for Fedora specific config
    - replace cabal_verbose with cabal_configure_verbose, cabal_build_verbose,
      cabal_install_verbose, cabal_haddock_verbose, and cabal_test_verbose
    - new _ghcdocdir
    
        
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