fix old migration file names

db/migrate/20140617183706_create_forums.rb

@@ -0,0 +1,13 @@
+class CreateForums < ActiveRecord::Migration
+  def change
+    create_table :forums do |t|
+      t.string     :name
+      t.integer    :position
+
+      t.references :role_read
+      t.references :role_write
+
+      t.references :forumgroup
+    end
+  end
+end