Updating mpv, and making it use ffmpeg_2
Add older mdds as libreoffice does not build with current version.
xterm: update from 281 to 300
vacuum: update from 1.2.0 to 1.2.3
tcllib: update from 1.14 to 1.15
tcpdump: update from 4.4.0 to 4.5.1
squids.latest: update from 3.2.2 to 3.2.13, potentially fixes CVE-2012-5643, CVE-2013-0189, CVE-2013-1839, CVE-2013-4123
smplayer: update from 0.8.5 to 0.8.6
simgear: update from 2.12.0 to 2.12.1
qjackctl: update from 0.3.9 to 0.3.10
powertop: update from 2.2 to 2.5
pidginmsnpecan: update from 0.1.0 to 0.1.4
oxygen_gtk: update from 1.3.4 to 1.4.1
ngspice: update from 24 to 25
nixos initrd: load atkbd, not xtkbd

I don't think anyone has a XT keyboard in a computer running nixos.
Adding go 1.2.

It doesn't include godoc anymore.

I could reproduce this, building this package:
http://code.google.com/p/go/issues/detail?id=6999
gperftools: upgrade to 2.1
wireshark: upgrade to 1.10.3

- cleaned up dependencies
- python support is deprecated (upstream) in favor of pyreshark
opus-tools: upgrade to 0.1.8
opusfile: new package