Added the ability to rename wiki pages (specific permission required).

Existing links that point to the old page are preserved and automatically redirected to the new page (this behaviour can be disabled when renaming the page).

git-svn-id: http://redmine.rubyforge.org/svn/trunk@720 e93f8b46-1217-0410-a6f0-8f06a7374b81

db/migrate/067_create_wiki_redirects.rb

@@ -0,0 +1,15 @@
+class CreateWikiRedirects < ActiveRecord::Migration
+  def self.up
+    create_table :wiki_redirects do |t|
+      t.column :wiki_id, :integer, :null => false
+      t.column :title, :string
+      t.column :redirects_to, :string
+      t.column :created_on, :datetime, :null => false
+    end
+    add_index :wiki_redirects, [:wiki_id, :title], :name => :wiki_redirects_wiki_id_title
+  end
+
+  def self.down
+    drop_table :wiki_redirects
+  end
+end