Move class method and add module access control

The `included` class method was placed between two module definitions.
This made it difficult to find lexically. This just moves it, white
space update, to after all modules are defined and before the module
methods are defined.

This also marks the module's helper methods as `module_function` access.
This means when they get included they will be private, thus not exposed
to potential routing conflicts.

Author: cupakromer

lib/kracken/controllers/json_api_compatible.rb

@@ -2,7 +2,6 @@ module Kracken
   module Controllers
     module JsonApiCompatible
 
-
       module MungeAndMirror
         # Wraps the data root in an Array, if it is not already an Array. This
         # will not wrap the value if the resource root is not present.
@@ -75,15 +74,6 @@ def verify_required_params(options = {})
         end
       end
 
-      def self.included(base)
-        base.instance_exec do
-          extend Macros
-
-          before_action :munge_chained_param_ids!
-          skip_before_action :verify_authenticity_token
-        end
-      end
-
       module DataIntegrity
         # Scan each item in the data root and enforce it has an id set.
         def enforce_resource_ids!
@@ -123,7 +113,17 @@ def resource_type
       end
       include VirtualAttributes
 
+      def self.included(base)
+        base.instance_exec do
+          extend Macros
+
+          before_action :munge_chained_param_ids!
+          skip_before_action :verify_authenticity_token
+        end
+      end
+
     # Common Actions Necessary in JSON API controllers
+    module_function
 
       # Wrap a block in an Active Record transaction
       #