add bash-4.2 patches 25 through 39
Merge remote-tracking branch 'upstream/master' into bash.121120
Merge remote-tracking branch 'upstream/master'
arduino-core libraries +inotool
Improved arduino-core and ino
Merge remote-tracking branch 'upstream/master'
Applied to wrong branch.
Revert "add bash-4.2 patches 25 through 39"

This reverts commit b6c5b9806f6ae79652336a7cfb51fe0f03d0590a.
remove avr gcc from inputs (it should be rebuit with C++ support)
add missing patch for redis on OSX
Patch ghc-paths to interact better with ghcWithPackages.

When the ghc-paths library is compiled, the paths of the
compiler it is compiled with are being hardcoded in the
library (and can then be queried from other applications
using the library).

But on Nix, packages are compiled with ghc-wrapper, and
subsequently possibly used with a special version of ghc
generated for a particular environment of packages. So
one version of ghc-paths may potentially end up being
used by lots of different instances of ghc. The hardcoding
approach fails.

As a work-around, we now patch ghc-paths so that it allows
setting the paths that can be queried via environment
variables. Specific GHC environments can then set these
environment variables in the wrapper shell script that
invokes GHC.

This should at least partially solve issue #213.
utillinux: fixing mount/umount, for our case of /etc/mtab symlinking to /proc/mounts

In systemd, without this patch, 'mount' for 'user' fstab devices works, but
umount does not; it says to require root.
All gets normal with this patch.
ghc-paths: Fix patch to hopefully work with older GHCs.
Adding ext4 to vmTools. Otherwise, nixos build-vm fails with 'useBootLoader'.
fuse 2.9.2
Add unionfs-fuse
Add unionfs-fuse meta
Adding USB cameras to linux 3.7

Details changed since the 3.6 config to get this enabled.
Keep nixpkgs backwards-compatible at least 1 version
darktable: Update to 1.1.1
Bumped kadu to v0.12.2 and its dependency libgadu to v1.11.2