Fix mit-scheme

These changes are necessary for me to use mit-scheme on i686 NixOS.
mit-scheme in the current state should be broken on x86_64 either and
these changes should fix, too. I however did not test this.
Merge pull request #258 from chaoflow/python

Python recursivePthLoader in action

I've checked that nothing which passes in trunk: http://hydra.nixos.org/eval/810237 fails in python-rework: http://hydra.nixos.org/eval/810395

I can also now use buildEnv for python very comfortably. This is a massive improvement, thanks a lot!
Add Google::ProtocolBuffers perlPackage
all-packages.nix: strip trailing whitespace
haskell-hashable: update 1.2.x branch to 1.2.0.5
haskell-cipher-rc4: add version 0.1.2
haskell-crypto-numbers: add version 0.1.3
haskell-crypto-pubkey: add version 0.1.2
haskell-clientsession: update to version 0.8.1
haskell-crypto-conduit: update to version 0.4.3
haskell-cryptocipher: update to version 0.4.0
haskell-hakyll: update to version 3.5.3.0
haskell-mime-types: update to version 0.1.0.2
haskell-persistent: update to version 1.1.4
haskell-system-fileio: update to version 0.3.11
haskell-tls-extra: update to version 0.6.0
haskell-tls: update to version 1.1.1
haskell-warp: update to version 1.3.7.1
Update Cuneiform
Added jbig2enc.