add apache group attribute
add apache group attribute

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