Revert "firefox: bump to 30.0."

This reverts commit 69852b1c64327eb57df8950469927cfa226cfbdd. Firefox
30.0 breaks restoring sessions (#2950).
duo-unix: upgrade, fix full name + version

Signed-off-by: Austin Seipp <aseipp@pobox.com>
(cherry picked from commit fd4c2d893f4e2be52f809121d2e191053b801c78)
EC2: allow building S3-backed HVM ami's
Change size of Amazon EC2 S3-backed images to 8GB (was 4GB).
retroshare: place plugins at proper place

Now they can be used.
xorg: add xkbprint

Suggested by @KoviRobi on ML.

(cherry picked from commit 3f15312b4455ca199fe1475102c1689fdcede997)
Making retroshare bootstrap the DHT fine.
Added cuda6 compiler as package cudatoolkit6.

(cherry picked from commit ca0de0f1f7de227e44d31e34e33a5033127ffdf0)
(cherry picked from commit 01bbc613648008b2b54b9405b6c159cfac42f815)
youtube-dl: upgrade to 2014.06.19
Fix toolset argument to boost > 1.55
Make openjre default jre on darwin, just like jdk.

(cherry picked from commit 00d9b5dfeb606d08628384f70f32f3f42869b1b6)
gnupg1: security update to version 1.4.17 (CVE-2014-4617)

(cherry picked from commit fd73d2b13b70239d0a69e7e317ce71d2674e024d)
gnupg: security update 2.0.22 -> .24, CVE-2014-4617

Close #3091.

(cherry picked from commit 99da7b85cbf72ac50b5217e4c8b06acfd7ef4b1b)
winetricks: Update to 1199

(cherry picked from commit 429bdef9bdb34d22ddda2d4291c0ba8adbd7e7c2)
Don't suggest using --arg config '{ allowUnfree = true; }'

This doesn't work when using the Nixpkgs/NixOS channel.

Issue #2998.

(cherry picked from commit e5d63646a092a51f0ad7f38c4d99d2b5685c07ba)
Fix generation of synergy-{client,server} when disabled

(cherry picked from commit 9ae3654fd6d6b797b9ed34e8c42989a3957cc7c4)
Handle <nixpkgs> being a symlink

Fixes #1898.

(cherry picked from commit a7d31fe4491fe18ddc1f80711bc32fb05a19486b)
linux-*: pull version updates from master
linux-3.13: remove, as it's vulnerable

CC #3090.

(cherry picked from commit 7998a598b65df13624b82fbc6be8efd33da2fb5a)
Fix network-manager-applet startup issue 'GLib-GIO-Message: Using the 'memory' GSettings backend.  Your settings will not be saved or shared with other applications.'