move foodsoft_wiki db migration to plugin

lib/foodsoft_wiki/db/migrate/20090325175756_create_pages.rb

@@ -0,0 +1,23 @@
+class CreatePages < ActiveRecord::Migration
+  def self.up
+    create_table :pages do |t|
+      t.string :title
+      t.text :body
+      t.string :permalink
+      t.integer :lock_version, :default => 0
+      t.integer :updated_by
+      t.integer :redirect
+      t.integer :parent_id
+
+      t.timestamps
+    end
+    add_index :pages, :title
+    add_index :pages, :permalink
+    Page.create_versioned_table # Automaticly creates pages_versions table
+  end
+
+  def self.down
+    drop_table :pages
+    Page.drop_versioned_table
+  end
+end