Add chicken-4.8.1
Python3: fix the download URL
set platforms for i3wm
Add aws-sdk and deps (node library)
Add weighttp 0.3
lightdm: Add lightdm and lightdm-gtk-greeter
Merge pull request #420 from ocharles/lightdm

lightdm: Add lightdm and lightdm-gtk-greeter
spring: bump and fix build
release-haskell.nix: adapt file to the new release-lib.nix
i3status and i3lock should have same platform as i3wm
Allow overriding perlPackages

__overrides is the worst.

Signed-off-by: Shea Levy <shea@shealevy.com>
haskell-conduit: update to version 1.0.4.2
haskell-fclabels: update to version 1.1.5
haskell-generic-deriving: update to version 1.5.0
haskell-lens: update to version 3.9.0.2
haskell-liblastfm: update to version 0.1.1.1
haskell-multiarg: update to version 0.12.0.0
haskell-unix-compat: update to version 0.4.1.1
haskell-persistent-postgresql: jailbreak to fix build with latest version of postgres-simple
haskell-dual-tree: update to version 0.1.0.2