silc-client: the irssi plugin segfaults on join, with current irssi.

I fix and make it build the standalone client.
Adding fish (blowfish over irc) for irssi.
python-py and python-tox, the latter still broken
on the way to #463: make pythonPackages self-referential
pythonPackages.ipythonLight: no qt/numpy dependency
virtualbox+guest: Update to new upstream v4.2.12.

All patch files dropped because they're fixed in this release. For a full list
of fixes that come with this maintenance release, please refer to:

https://www.virtualbox.org/wiki/Changelog

Signed-off-by: aszlig <aszlig@redmoonstudios.org>
chromium: Update all channels to latest versions.

stable:   26.0.1410.43              -> 26.0.1410.63 (builds fine, tested)
beta/dev: 27.0.1453.15/27.0.1453.12 -> 27.0.1453.47 (builds fine, tested)

This should bring beta and dev in par, as dev was older than the beta version.

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

I don't build freenet_ext or bcprov, I just take the jar.
Freenet irc people told me that freenet_ext barely changes and it's a hell to build.
freenet: adding a missing jar in the classpath

It was crashing while running, without it.
libextractor: update to 1.0.1
gnunet: update to 0.9.5a (minor bugfixes)
Adding irssi-otr.
libotr: update to 4.0.0
libotr wanted the stack protector libs.

Missed by our gcc-wrapper, I guess.
irssi-otr: updating to a fork more up to date
Fixing libotr crash (taking a 3rd party patch)

I hope it doesn't make libotr insecure, but the trivial patch comes from
this irssi-otr thread:
https://github.com/cryptodotis/irssi-otr/issues/21
freetype: attempt to fix build for the other FreeBSD
vala: attempt to fix on FreeBSD
linux-3.0: upgrade to 3.0.73
linux-3.4: upgrade to 3.4.40