Add gramps package.

Basic functionality works. No plugins yet (TODO: GExiv2, pyICU, webkit,
osmgsmmap).

Gives error messages about errors in GTK installation regarding
localization. No impact other than the messages visible.
gramps: add license
Darkcoin: new package (v0.9.13.15)

Darkcoin is a privacy-centered crypto-currency.
ccl: fix paths to coreutils
Update matplotlib to 1.4.2.

matplotlib acquired two new dependencies: mock for testing
and pytz for rendering.
Litecoin: Update to 0.9.3-preview5

Now Litecoin expression lives in a single file, litecoin.nix
debootstrap | 404-fix:  -> 1.0.64, since 1.0.63 disappeared from archive
Megatools: update to 1.9.93
Add python-Twiggy 0.4.5.
Add python-bugzilla 1.1.0.
Bump Jinja2 to version 2.7.3.
Add python-taskw 0.8.6.
Add python-bugwarrior 1.0.2.
libpfm & rr: Add packages.
rr: Bump to version 2.0.0 and fetch it from github.
rubyLibs: add tmuxinator, update
nodePackages: hack version override sed some more to support github packages, until better solution is found
virtualbox: Fix extension pack installation.

With hardening, we need to go a bit further rather than just allowing
/nix/store being world-writable. We now use fakeroot to make sure the
VBoxExtPackHelperApp won't moan that the files are not owned by root.

They are, but only outside of the chrooted build process.

Another issue with using fakeroot is that it doesn't seem to cope well
with arguments that contain spaces. That's why I've piped the call into
${stdenv.shell}.

Now, the really gory and confusing part is the introduction of
VBOX_PATH_APP_PRIVATE_ARCH_TOP and the change of VBOX_PATH_APP_PRIVATE.

The VBOX_PATH_APP_PRIVATE_ARCH is *only* for modules and is checked by
the hardened implementation against whether things like VMMR0.r0 or
VBoxVMM.so reside in that directory. As a side note: I admit that the
whole libexec directory is quite polluted with stuff that shouldn't be
there, but for now we've broken enough things and will tear apart the
whole structure at some day in the future[TM].

For the confusing part we have VBOX_PATH_APP_PRIVATE_ARCH_TOP, which
_should_ be the same as VBOX_PATH_APP_PRIVATE_ARCH but unfortunately,
the hardened implementation is checking against this directory (in
IsValidBaseDir) for the extension pack(why!?).

Of course, we could put even that into the libexec directory, somewhat
similar as the official package, but after all, let's at least *try* to
separate things.

Signed-off-by: aszlig <aszlig@redmoonstudios.org>
rescuetime: a time tracking service
Fix filename for udev network interface rules

From http://www.freedesktop.org/wiki/Software/systemd/PredictableNetworkInterfaceNames/

You disable the assignment of fixed names, so that the unpredictable
kernel names are used again. For this, simply mask udev's rule file for
the default policy: ln -s /dev/null
/etc/udev/rules.d/80-net-setup-link.rules (since v209: this file was
called 80-net-name-slot.rules in release v197 through v208)