nixos-generate-config: Add --no-filesystems flag.

This is to get back the old behavior of nixos-hardware-scan, which
didn't include fileSystems and swapDevices.

Signed-off-by: aszlig <aszlig@redmoonstudios.org>
nixos-generate-config: Remove unnecessary spaces.

The attributes swapDevices and imports add a space character after the
eqals sign, which is unnecessary. I know, I'm a pedantic douche bag but
it hurts my eyes.

Signed-off-by: aszlig <aszlig@redmoonstudios.org>
nixos-generate-config: Add --show-hardware-config.

So, we get the old behaviour of nixos-hardware-scane if we run the
following command:

nixos-generate-config --no-filesystems --show-hardware-config

This allows to use scripts in order to fetch NixOS specific hardware
information, without the need to duplicate code elsewhere.

Signed-off-by: aszlig <aszlig@redmoonstudios.org>
synergy: Update to new upstream version 1.4.15.

This is a bugfix release which fixes the following bugs:

 * Synergy Service - Error 87: The parameter is incorrect.
 * Option not supported on Linux: --enable-drag-drop (server not
   starting)

Bug IDs and the announcement can be found at:

http://synergy-foss.org/blog/synergy-1-4-15-released/

Signed-off-by: aszlig <aszlig@redmoonstudios.org>
nixos-rebuild: Drop references to <nixos>.

Commit 31203732b3104125e107a3141578399cab5d478f dropped the reference to
<nixos> from NIX_PATH (nixos/modules/programs/environment.nix) and thus
prevents systems that are not using channels from rebuilding.

Signed-off-by: aszlig <aszlig@redmoonstudios.org>
zabbix20: Update to now upstream version 2.0.9.

This drops the patch for ZBX-7091, because it hase been fixed upstream.

Other upstream changes can be found at the following URL:

http://www.zabbix.com/rn2.0.9.php

Signed-off-by: aszlig <aszlig@redmoonstudios.org>