Also made changes to lua package generation system to account for packages like cqueues
that have one version per lua interpreter.
The csv file also accepts comments now.
* lua: generate packages from luarocks
* luarocks-nix: update
* removed packages already available in nixpkgs
* adressing reviews
update script can now accept another csv file as input with -c
* Remove obsolete comment
luarocks-nix is a fork of luarocks that adds a "nix" command capable of
converting luarocks package descriptions into nix derivations (though nixpkgs is
still missing the lua infrastructure).
