haskell-mode: upgrade to 13.07
Merge pull request #772 from aforemny/haskell-happstack-lite

Add haskell-happstack-lite
Merge pull request #770 from aforemny/haskell-elm

Add Elm and elm-server
Merge pull request #771 from aforemny/haskell-qrencode

Add haskell-qrencode
haskell-atomic-primops: update to version 0.4
haskell-attoparsec-conduit: update to version 1.0.1.2
haskell-classy-prelude: update to version 0.5.9
haskell-comonad-transformers: update to version 3.0.4
haskell-conduit: update to version 1.0.7.3
haskell-contravariant: update to version 0.4.3
haskell-shakespeare-css: update to version 1.0.6.2
haskell-shakespeare-js: update to version 1.1.4.1
haskell-shakespeare-text: update to version 1.0.0.6
haskell-xml-conduit: update to version 1.1.0.5
haskell-xml-types: update to version 0.3.4
haskell-yaml: update to version 0.8.4
haskell-yesod-bin: update to version 1.2.2
fix bug in perf-linux installation, oops
nvidia: also install useful nvidia-smi tool
apcupsd: use /run/nologin (instead of /etc/nologin) to prevent logins

This is what systemd uses, see "man systemd-user-sessions.service".