premake: bump to version 4.3

aacskeys depends on premake3, so keep that version around.
Upgrade bitlbee to 3.2
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
linux-3.8: upgrade to 3.8.7
some libintl and libiconv cleanups + non-linux fixes
meta.license should be a (list of) string(s), not an attribute set

http://hydra.nixos.org/build/4744513
git-annex: drop obsolete dependency on testpack
haskell-testpack: drop obsolete and unmaintained library