EC2: allow building S3-backed HVM ami's

(cherry picked from commit e007559e9580c134f43ea9dc2279ff41cb3bd015)
Change size of Amazon EC2 S3-backed images to 8GB (was 4GB).

(cherry picked from commit 05543ef6e038a834aa323d467c9ef02ad99c5adb)
chicken: Update to 4.9.0.1.
leiningen: Update to 2.4.2.
haskellPackages.digestiveFunctorsAeson: Update to 1.1.9
Jailbreak haskellPackages.websockets

This is needed until https://github.com/jaspervdj/websockets/issues/71
is resolved.
Jailbreak haskellPackages.fb

This is necessary until https://github.com/meteficha/fb/issues/24 is
resolved.
haskellPackages.jsonAssertions: Update to 1.0.3
Added cuda6 compiler as package cudatoolkit6.
Wrap haddock 2.10+ to find GHC packages
Wrap ghc-modi to find GHC packages
agda: fix dependency on more recent 'binary'
idris: fix dependency on older 'parsers'
agda-stdlib: no need to jailbreak anymore
tweak
Merge pull request #3016 from danielzinn/add_cuda_6

Added cuda6 compiler as package cudatoolkit6.
Add missing dependency to gtk-vnc
alsa-plugins: upgrade to 1.0.28

adding libogg as dependency should fix the build
Merge branch 'master' of git://github.com/soenkehahn/nixpkgs

Update haskell-wai and haskell-warp
Add nvidia-texture-tools.