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".
Merge pull request #774 from aristidb/master

Add nvidia-smi tool and fix an embarrassing bug in a previous pull request of mine
Added flatiron nodejs package + updated other nodejs packages
Oxygen-gtk: upgrade to 1.3.4
libspotify: Fix build for linux.

For Linux, the phases was run in the wrong order. I've
fixed that, but the package is still a complete mess that
needs to be cleaned up. The linux and darwin builds should
probably be separated into two different Nix expressions
to avoid the current conditional mess.
ipsec-tools: update to version 0.8.1
apparmor: Update to kernel 3.4 series (the current default)
Fix junit
Add linux 3.2.48 with grsecurity patches
Updating go to 1.1.1
smartmontools: update drive database to the latest version