Added a few VIM plugins.
vim-pluings: Fix missing hash
Merge branch 'new-vim-plugins' of git://github.com/ts468/nixpkgs
nixos-container destroy: Make idempotent
Containers: Set up /etc/resolv.conf

Systemd-nspawn is supposed to do this, but doesn't if any of the
--network-* flags are used.
Merge pull request #3601 from Fuuzetsu/updates

Few Haskell updates