Don't create world-readable swapfiles
Remove some dead code
dhcpcd: Fix segfaults

This fixes several problems in the dhcpcd service:

* A segfault during startup, due to a race with udev (dhcpcd would get
  an ADD event from udev, causing it to re-add an interface that it
  already had, leading to a segfault later on).

* A hang/segfault processing "dhcpcd rebind" (which NixOS calls after
  waking up from suspend).

Also, add "lo" to the list of ignored interfaces. It usually ignores
"lo", but apparently not when it gets an ADD event from udev.
Make the misc test a bit more robust
Silence some Hydra evaluation warnings
Fix simpleTest function
Try again
Add haskell-http-kit
sproxy: bump
linux-3.12: bump .17 -> .18
Remove outdated remark
cups: Start after network.target

http://hydra.nixos.org/build/10661709
Make nscd startup synchronous

Nscd forks into the background before it's ready to accept
connections. So explicitly wait until it's ready.

http://hydra.nixos.org/build/10661767
Manual: Don't include the platform type of the host system

This causes unnecessary rebuilds of the manual.

http://hydra.nixos.org/build/10662170
cups: Add a listenAddresses option
Urgh

Can't figure out why "hostname -s" keeps failing randomly :-(

http://hydra.nixos.org/build/10662142
grsecurity: Update all patches

stable:  3.0-3.2.57-201404182109            -> 3.0-3.2.57-201404241714
test:    3.0-3.14.1-201404201132            -> 3.0-3.14.1-201404241722
vserver: 3.0-3.2.57-vs2.3.2.16-201404182110 -> 3.0-3.2.57-vs2.3.2.16-201404241715