fsharp: 3.0 -> 3.1, and attempt to fix build

Hopefully this fix will appease hydra - the distributed autogen.sh
script is annoying.

Signed-off-by: Austin Seipp <aseipp@pobox.com>
Started default.nix for slrn. Not finding slang
Update default.nix to use ncurses and patch hardcoded paths
Fix broken references to 'maintainers' attribute set.
Merge branch 'fsharp' of git://github.com/thoughtpolice/nixpkgs

fsharp: 3.0 -> 3.1, and attempt to fix build
Add libsystemd-journal haskell package
Remove pkgs from slrn. Use stdenv.lib instead
Merge pull request #1996 from jacobhinkle/slrn

Add slrn: command-line newsreader
haskell-QuickCheck: update to version 2.7.1
haskell-QuickCheck: jailbreak to that the test suite for 2.7.1 accepts its own library
haskell-tls: update to version 1.2.3
haskell-filepath: update to version 1.3.0.2
haskell-vty: update to version 4.7.5
haskell-wx: update to version 0.90.1.0
haskell-wxc: update to version 0.90.1.0
haskell-wxcore: update to version 0.90.1.0
haskell-wxdirect: update to version 0.90.1.0
haskell-wxHaskell: drop obsolete patch
ghc-7.4.2: fix build on recent versions of Darwin
ghc-7.8.1: fix build on recent versions of Darwin