New packages: pam_mount and libHX

Add pam_mount package. Integration into NixOS is still missing.
Merge branch 'upstream' into pam_mount

Conflicts:
	pkgs/top-level/all-packages.nix
Fix description in pam_mount and libHX. Add tstrobel as maintainer.
util-linux: bump
init list helper
Add strongswan IPsec manager
manual: mention go2nix
Merge pull request #4119 from edwtjo/list-helpers

init list helper
nixos/firewall: Cleanup in case reload fails
Merge pull request #4114 from wkennington/master.firewall

nixos/firewall: Cleanup in case reload fails
Add coreutils dependency to ant launcher script

Closes #4106.
Adding AdvanceCOMP deflate compression optimizer
haskellPackages: introduced ShellCheck.
Merge pull request #4126 from aycanirican/introduce_haskellPackages_sellcheck

haskellPackages: introduced ShellCheck.
Merge pull request #4092 from ts468/pam_mount

New packages: pam_mount and libHX
add xvidcap to the channel for linux
nodejs: Bump to version 0.10.32
nixos: add collectd module
nixos/graphite: add seyren service, graphite alerting dashboard
pythonPackages.graphite_api: fix testing, make more nix-shell friendly