readded metadata.json file that was deleted during cherry-pick
readded metadata.json file that was deleted during cherry-pick

dagolden/opscode-cookbooks,beni55/cookbooks,beni55/cookbooks,DataDog/opscode-cookbooks,DataDog/opscode-cookbooks,beni55/cookbooks,dbroeglin/cookbooks,beni55/cookbooks,pgroudas/cookbooks,gravitystorm/cookbooks,gravitystorm/cookbooks,dagolden/opscode-cookbooks,dbroeglin/cookbooks,beni55/cookbooks,pgroudas/cookbooks,beni55/cookbooks,dbroeglin/cookbooks,dagolden/opscode-cookbooks,gravitystorm/cookbooks,DataDog/opscode-cookbooks,pgroudas/cookbooks