wicd: fix copying dhclient's config to it's initial location
Merge pull request #683 from grwlf/wicd-fixes

wicd: obtain dhclinet's config template from shares correctly
sane-backends: update saneBackendsGit to the latest version

For some reason, SANE suddenly stopped recognizing my scanner recently:

 | $ scanimage -L
 |
 | No scanners were identified. If you were expecting something different,
 | check that the scanner is plugged in, turned on and detected by the
 | sane-find-scanner tool (if appropriate). Please read the documentation
 | which came with this software (README, FAQ, manpages).

I was able to remedy this issue by building SANE with the latest version
of the backends package from Git, by adding the following override to
~/.nixpkgs/config.nix:

 | {
 |   packageOverrides = pkgs:
 |   {
 |     saneBackends = pkgs.saneBackendsGit;
 |   };
 | }
Build haddock for transformers-compat
haskell-git-annex: update to version 4.20130709
haskell-abstract-deque: update to version 0.2.2
haskell-atomic-primops: update to version 0.2.2
haskell-persistent: update to version 1.2.2.0
haskell-postgresql-libpq: update to version 0.8.2.3
haskell-shelly: update to version 1.3.0.6
haskell-xml-conduit: update to version 1.1.0.4
php 5.4: Add mhash support