pam: Add logFailures option for adding pam_tally to su
Add namecoin cryptocurrency
my-env: Preserve http_proxy and ftp_proxy variables

There are few build scripts which set them to `nodtd.invalid` to disable
downloading files by buildscript. But for user environment we should
restore original values
Added gmock (Google Mock) package to complement gtest package.
yojson: propagate build inputs (as in PR #3404)
merlin: update to 1.7
Merge pull request #1 from sfultongv/sfultong-14.04

updating tomcat to version 7
adding tomcat version 8
Updates merlin to 1.7.1
nixos: add systemd service for getty on /dev/console
nixos: make-system-tarball, add option for extra arguments for tar

Sometimes extra arguments when making tarball are required,
for example if making a container owner of files has to be changed
to root.
nixos: virtualisation, add basic docker nixos image
Support odbc in erlang R16 and R17
Adds ocaml-cmdliner

Cmdliner is an OCaml module for the declarative definition of command
line interfaces.

Homepage: http://erratique.ch/software/cmdliner
s6-portable-utils: new package

s6-portable-utils is a set of tiny general Unix utilities, often
performing well-known tasks such as cut and grep, but optimized for
simplicity and small size.
s6-dns: new package

s6-dns is a suite of DNS client programs and libraries for Unix systems,
as an alternative to the BIND, djbdns or other DNS clients.
s6-networking: new package

s6-networking is a suite of small networking utilities for Unix systems
including UCSPI Unix and TCP tools, access control tools, and network
time management utilities.
s6-linux-utils: new package

s6-linux-utils is a set of minimalistic Linux-specific system utilities.
btrfsProgs: 3.14.2 -> 3.16.0

Additionally, add myself as a maintainer.
Add `extraConfig` option for SLiM

so that various configuration options can be set without having to
expose every single configurable parameter