work in progress, add fidelity to category group permissions (full, create posts, readonly)

db/migrate/20130712041133_add_permission_type_to_category_groups.rb

@@ -0,0 +1,9 @@
+class AddPermissionTypeToCategoryGroups < ActiveRecord::Migration
+  def change
+    # 1 is full permissions
+    add_column :category_groups, :permission_type, :integer, default: 1
+
+    # secure is ambiguous after this change, it should be read_restricted
+    rename_column :categories, :secure, :read_restricted
+  end
+end