release.nix, release-small.nix: build atlas library on Hydra

This puppy takes several hours to compile, being able to download that
package in binary form is really valuable.
iw: update to 3.10.

The newer, the better.
youtube-dl: without pandoc on non-pc
cgit: new package

cgit is a web frontend for git repositories - it is a CGI program to use
with your favourite webserver. Add the latest version, 0.9.2.
aircarck-ng: updating and fixing build

Requested in issue #585
aircrackng: add platform & maintainers
haskell-hledger-lib: update to version 0.21
haskell-hledger-web: update to version 0.21
haskell-hledger: update to version 0.21
Merge pull request #584 from bjornfor/cgit

cgit: new package
Module::Pluggable: Update to 4.8
mysql-connector-java: Updated to 5.1.25
typos