herbstluftwm: update to 0.6.2
Shea told me composableDerivation is hard to understand.

Thus comment it and why it was written long time ago until it'll get replaced piecewise.
Bump docker version to 0.10.0.
sudo: env_keep TERMINFO for urxvt
Updated to mutt-1.5.23
Disable Texinfo tests on Darwin
Add an expression for the Haskell library djinn
Allow Dovecot to build with clucene, and on any Unix
Add a bunch of Fedora mirrors and remove an old one
First attempt at data/fonts/poly
buildLocalCabal: allow cabalDrvArgs in buildLocalCabalWithArgs

allows to write neat expressions like (as we're still generating an
expression string):

```
{
  build = haskellPackages.buildLocalCabalWithArgs {
    inherit src name;
    cabalDrvArgs = {
      jailbreak = false;
      doCheck = false;
    };
  };
}
```

without resorting to weird kung-fu like darcs does:

```
darcs = haskellPackages.darcs.override {
  # A variant of the Darcs derivation that containts only the
  # executable and
  # thus has no dependencies on other Haskell packages.
  cabal = { mkDerivation = x: rec { final = haskellPackages.cabal.mkDerivation (self: (x final) // {
            isLibrary = false;
            configureFlags = "-f-library"; }); }.final;
          };
};
```

While here, move the `jailbreak = true;` as the default `cabalDrvArgs`
option.
Add OFL as an actual license
Merge pull request #2535 from CodeBlock/fedora-mirrors

Add a bunch of Fedora mirrors and remove an old one
Force --no-same-owner for unpacking node sources.
Merge branch 'buildLocalCabal-drvArgs' of git://github.com/proger/nixpkgs

buildLocalCabal: allow drvArgs in buildLocalCabalWithArgs
b43-fwcutter: update 015 -> 018
libdrm: minor update 2.4.52 -> .54

Including support for AMD Mullins chips.
mesa: bugfix update 10.1.1 -> .2

Contains many driver fixes.
xorg: minor update of xf86-input-{evdev,synaptics}
gst-plugins-base: update from 1.2.3 to 1.2.4 (in #2440)