Don't update issues nor log time when importing old changesets (#4823).

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@12199 e93f8b46-1217-0410-a6f0-8f06a7374b81

db/migrate/20131005100610_add_repositories_created_on.rb

@@ -0,0 +1,9 @@
+class AddRepositoriesCreatedOn < ActiveRecord::Migration
+  def up
+    add_column :repositories, :created_on, :timestamp
+  end
+
+  def down
+    remove_column :repositories, :created_on
+  end
+end