Further customize kitchen to avoid berksfile detection
Further customize kitchen to avoid berksfile detection

Fixes an issue where the presence of a Berksfile makes TK try to load
berkshelf (which we don't want anyway) which then has a dependency
conflict with ChefDK.

tas50/chef-dk,chef/chef-dk,tbunnyman/chef-dk,tas50/chef-dk,vinyar/chef-dk,vinyar/chef-dk,chef/chef-dk,clintoncwolfe/chef-dk,vinyar/chef-dk,clintoncwolfe/chef-dk,tas50/chef-dk,chef/chef-dk,tbunnyman/chef-dk