role_command_order.json

[Aaron Cody]

hello
So I’m looking at the code in 1.6.0 and I see that dependencies seem to have 
moved out into a ‘role_command_order.json’ file …. on a per-stack basis … but 
then I spotted one of these files up in ambari-server/main/resources  … is that 
 one used for anything? Can it be ignored? Is there some kind of dependency 
override scheme going on here? Are there any docs available describing this new 
mechanism?
TIA