duplicity-0.6.20
python: do not delete site.py for now as it breaks existing use cases

see #209, thx shlevy for reporting this
linux: Update to 3.2
nix: Update to 1.2
fixes for redis on OSX
Merge branch 'redis' of https://github.com/washort/nixpkgs into upstream

fixes for redis on OSX
only depend on perl on OSX
better syntax thanks to aszlig
Merge pull request #207 from washort/mysql55

And sorry to @washort for bugging him too much with the syntax.
Fix dummy pseudo-updates being found for some packages
Update Wine
haskell-base64-conduit: update to version 0.5.1
haskell-generic-deriving: update to version 1.4.0
haskell-iproute: update to version 1.2.8
haskell-lens: update to version 3.7.0.2
haskell-lifted-base: update to version 0.2.0.2
haskell-simple-sendfile: update to version 0.2.10
haskell-test-framework-quickcheck2: update to version 0.3.0.1
haskell-test-framework: update to version 0.8
haskell-hlint: update to version 1.8.39