JBuilder's templates have less priority than app templates

Closes #271

Author: spastorino

lib/generators/rails/scaffold_controller_generator.rb

@@ -4,7 +4,7 @@
 module Rails
   module Generators
     class ScaffoldControllerGenerator
-      source_paths.unshift File.expand_path('../templates', __FILE__)
+      source_paths << File.expand_path('../templates', __FILE__)
 
       hook_for :jbuilder, default: true
     end