CHEF-129: sort the tree output

Author: AJ Christensen

chef-server-slice/app/helpers/nodes_helper.rb

@@ -57,7 +57,7 @@ def build_tree(node)
               list << "<dd>#{value}</dd>"
           end
         end
-        node.attribute.each(&walk)
+        node.attribute.sort{ |a,b| a[0] <=> b[0] }.each(&walk)
         list << "</dl>"
       end
     end