Wiki page protection (#851, patch #1146 by Mateo Murphy with slight changes).

New permission added: protect wiki pages. Once a page is protected, it can be edited/renamed/deleted only by users who have this permission.

git-svn-id: http://redmine.rubyforge.org/svn/trunk@1415 e93f8b46-1217-0410-a6f0-8f06a7374b81

db/migrate/093_add_wiki_pages_protected.rb

@@ -0,0 +1,9 @@
+class AddWikiPagesProtected < ActiveRecord::Migration
+  def self.up
+    add_column :wiki_pages, :protected, :boolean, :default => false, :null => false
+  end
+
+  def self.down
+    remove_column :wiki_pages, :protected
+  end
+end