add categories to forum topics

db/migrate/20130606224559_add_category_to_forum_topics.rb

@@ -0,0 +1,5 @@
+class AddCategoryToForumTopics < ActiveRecord::Migration
+  def change
+    add_column :forum_topics, :category_id, :integer, :default => 0, :null => false
+  end
+end