flightgear: 2.10.0 -> 2.12.0 (and make it run again)

The current FlightGear expression doesn't work:

  bash$ nix-build -A flightgear
  /nix/store/3c47sibzb9h1vhnn0gnh692hkpjc5p5v-flightgear-2.10.0

  bash$ ./result/bin/fgfs
  ERROR: The path '/nix/store/3c47sibzb9h1vhnn0gnh692hkpjc5p5v-flightgear-2.10.0/lib/FlightGear' does not exist in the file system.

  Base package check failed:
    Version [none] found at: /nix/store/3c47sibzb9h1vhnn0gnh692hkpjc5p5v-flightgear-2.10.0/lib/FlightGear
    Version 2.10.0 is required.
  Please upgrade/downgrade base package and set the path to your fgdata
  with --fg-root=path_to_your_fgdata

We could probably make the 2.10.0 version run, but I had already
upgraded it to 2.12.0 before I made it work. It seems only the data dir
configuration was wrong/missing: FG_DATA_DIR="$out/share/FlightGear/".

Simgear must be in version sync with flightgear, hence the upgrade.

Most of the diff is because I rewrote the flightgear expression to what
I think is the "new style". I wanted to add a preConfigure phase but
didn't understand why this expression had custom phases. So I just
rewrote the whole thing to something I consider more readable.
implement bjornfors comments
rsnapshot: extraConfiguration -> extraConfig
gnupg1: 1.4.13 -> 1.4.15 (CVE-2013-4402)
rsnapshot: do not use /etc/rsnapshot.conf
Merge pull request #270 from aristidb/master

Add simple rsnapshot module
Eventlist: First working package 0.6.96.

Added boost as buildInputs.
Removed uneeded doCheck.
Eventlist: Renamed accordingly and fixed the description.
Merge pull request #1051 from silverhook/eventlist

Eventlist: add package
filegive update to 0.7.1
Disallow Memtest86+ with GRUB 1

The GRUB entry as given is syntactically invalid.
Add some missing option types
Make GRUB 2 the default

Fixes #269.
Give the VDI generator more memory

These out of memory conditions are highly unpredictable, which is very
annoying.

http://hydra.nixos.org/build/6411393
Amazon's pv-grub is GRUB 1
Lack of laziness strikes again...
weechat: 0.4.2 and fix segfault on /exit.

Signed-off-by: Moritz Ulrich <moritz@tarn-vedra.de>
Add gnutls 3.2.4 (as pkgs.gnutls32) & make weechat use it.

Signed-off-by: Moritz Ulrich <moritz@tarn-vedra.de>
quassel: Fix evaluation on non-Linux platforms
Remove KDE 4.8

4.10 has been the default for a while.