psi: fix remove psimedia and spellchecker

picosat: 960 -> 965, add proof support

mini-httpd: add -ansi to CFLAGS

salt: init at 2015.8.8

owncloudclient: 1.7.1 -> 2.1.1

rustPackages: 2016-03-22 -> 2016-04-02

spellchecker (aspell -> enchant)

perlPackages.W3CLinkChecker: Add HTTPS support

Also init salttesting at 2015.7.10 as a build dependency.

distcc: add libiberty as a buildInput

irssi: 0.8.17 -> 0.8.19

This enables [SASL authentication][1], which was added in 0.8.18.

Tested via `nix-env -f /path/to/nixpkgs -i irssi`, followed by running
`irssi`.

[1]: https://wiki.archlinux.org/index.php/Irssi#Authenticating_with_SASL

pulseaudio nixos module: run as systemd user service instead

dbus nixos module: add units for systemd user session

Crashplan 46 r2

elixir: 1.2.3 -> 1.2.4

rebar3-nix-bootstrap: correct homepage URL

godep: 2015-10-15 -> 60

s/erl-nix/erlang-nix/

simplify ISSUE_TEMPLATE

Unetbootin works by altering the image and placing a boot loader on it.
For this reason, it cannot work with UEFI and the installation guides
for other distributions (incl. Debian and Fedora) recommend against
using it.

Since dd writes the image verbatim to the drive, and not just the files,
it is not necessary to change the label after using it for UEFI
installations.

vcunat: tiny changes to the PR. Close #14139.

Most of the desktop environments will spawn pulseaudio, but we can instead simply run it as a systemd service instead.

This patch also makes the system wide service run in foreground as recommended by the systemd projects and allows it to use sd_notify to signal ready instead of reading a pid written to a file. It is now also restarted on failure.

The user version has been tested with KDE and works fine there.

The system-wide version runs, but I haven't actually used it and upstream does not recommend running in this mode.

atom: 1.6.1 -> 1.6.2

This patch makes dbus launch with any user session instead of
leaving it up to the desktop environment launch script to run it.

It has been tested with KDE, which simply uses the running daemon
instead of launching its own.

This is upstream's recommended way to run dbus.