add automation-rubygem-rack to list of automation packages, and add ubuntu packages not listed
PACK-4 add mcollective client to list of conflicts/replaces
PACK-4 disable host dns switches - see https://github.com/rubygems/rubygems/issues/513#issuecomment-14964071
PACK-4 - comment Vagrantfile with link to fix
Merge pull request #26 from scalefactory/ubuntu_automation_packages

Additional replaces/provides packages for CentOS & improve Rubygem install speeds