almir: add psycopg2 dependency
nautilus-sendto: add to gnome 3.10
usermount: New Package.

A simple tool to automatically mount removable drives using UDisks2 and
D-Bus.

https://github.com/tom5760/usermount
Plymouth: update to 0.9.0, fix build, sanitize, enable systemd-integration

NOTE: I can start the daemon and ping it, but I haven't been able to
get it to do more than that.
Merge pull request #2789 from matejc/pgsql_almir

almir: add psycopg2 dependency
unbound: update from 1.4.21 to 1.4.22, service from Upstart to systemd
fix getopt path on darwin
Merge #1187 into p/stdenv

Tested building firefox, kdelibs, evince on x86_64-linux.
Build Haddocks with source hyperlinks unless doHscolour is false
sane: Make SANE_CONFIG_DIR overrideable
spotify: Update from 0.9.4.183.g644e24e.428 to 0.9.10.17.g4129e1c.78 (only for x86_64)
dragonegg: fix build, probably after gcc minor update
libvpx on darwin: attempt to fix build

CC @lovek323.
arcanist: 20140521 -> 20140530

Signed-off-by: Austin Seipp <aseipp@pobox.com>
samba: install pkg-config files

Close #2794, fixes #1341.
Merge pull request #2788 from jwiegley/stdenv

Change stdenv on darwin to not set NIX_ENFORCE_PURITY.

Further details are at <https://github.com/NixOS/nixpkgs/pull/2788>.
Merge pull request #2790 from ehmry/unbound

unbound: update from 1.4.21 to 1.4.22, service from Upstart to systemd
udiskie: add version 0.8.0.
libshout: propagate inputs that need to

Missing pkgconfig-deps were preventing detection by mpd, for example.
This only started to occur after pkgconfig update (maybe a bug fixed?).
CC #2769.
disk-indicator: Add package

A program that will turn a LED into a hard disk indicator.