Added config to test helper, updated README with config info

README.rdoc

@@ -41,6 +41,17 @@ In your model:
                                    :thumb => "100x100>" }
   end
 
+You will need to add an initializer to configure Paperclip.  If on Rails, can add a config/initializers/paperclip.rb, on Merb
+can use config/init.rb and add it to the Merb::BootLoader.after_app_loads section.  Can also use environment configs, rackup
+file, Rake task, wherever.
+
+  Paperclip.configure do |config|
+    config.root               = Rails.root # the application root to anchor relative urls (defaults to Dir.pwd)
+    config.env                = Rails.env  # server env support, defaults to ENV['RACK_ENV'] or 'development'
+    config.use_dm_validations = true       # validate attachment sizes and such, defaults to false
+    config.processors_path    = 'lib/pc'   # relative path to look for processors, defaults to 'lib/paperclip_processors'
+  end
+
 Your database will need to add four columns, avatar_file_name (varchar), avatar_content_type (varchar), and
 avatar_file_size (integer), and avatar_updated_at (datetime).  You can either add these manually, auto-
 migrate, or use the following migration:

test/helper.rb

@@ -42,6 +42,12 @@ class Mash < Hash
   end
 end
 
+Paperclip.configure do |config|
+  config.root               = Merb.root # the application root to anchor relative urls (defaults to Dir.pwd)
+  config.env                = Merb.env  # server env support, defaults to ENV['RACK_ENV'] or 'development'
+  config.use_dm_validations = true      # validate attachment sizes and such, defaults to false
+end
+
 def rebuild_model options = {}
   Object.send(:remove_const, "Dummy") rescue nil
   Object.const_set("Dummy", Class.new())