Remove yum cookbook (to be replaced with git submodule).
Add yum cookbook
Remove apt cookbook (to be replaced by submodule).
Add apt submodule from https://github.com/opscode-cookbooks/apt.git
Remove mongodb cookbook (to be replaced by submodule).
Add mongodb submodule from https://github.com/edelight/chef-mongodb.git
Remove newrelic-sysmond cookbook (to be replaced by submodule).
Add newrelic-sysmond submodule from https://github.com/phlipper/chef-newrelic-sysmond.git