User groups branch added.

git-svn-id: http://redmine.rubyforge.org/svn/branches/work@1372 e93f8b46-1217-0410-a6f0-8f06a7374b81

groups/extra/sample_plugin/db/migrate/001_create_some_models.rb

@@ -0,0 +1,13 @@
+# Sample plugin migration
+# Use rake db:migrate_plugins to migrate installed plugins
+class CreateSomeModels < ActiveRecord::Migration
+  def self.up
+    create_table :example_plugin_model, :force => true do |t|
+      t.column "example_attribute", :integer
+    end
+  end
+
+  def self.down
+    drop_table :example_plugin_model
+  end
+end