Add the dns submodule from https://github.com/ajjahn/puppet-dns
Fix puppull submodule bug

The previous version of this did not seem to work correctly in a
brand-new-directory-pull scenario and I am not too sure why. Hopefully
this will do it.

Git submodules are really irritating.
Add the puppetlabs concat module from https://github.com/puppetlabs/puppetlabs-concat
Exclude the 'dns' and 'concat' modules from rake tests

(these are both added as git submodules)
Remove 'bind9' from the package cleanup list
Update the dns submodule pointer to point to the fork, instead
Merge pull request #8 from marvinpinto/add-dns

Use the puppet-dns module to manage DNS configuration