added rake to Gemfile so we can actually use the tasks from Rakefile
Merge pull request #360 from pekeler/rake_fix

added rake to Gemfile so we can actually use the tasks from Rakefile
Non-remote links' default handler is now slightly delayed so that browsers repaint the link with their new disable text/status (this is an issue in Safari and Chrome). This change also fixes an issue in IE where a link with a disable-with attribute around a div doesn't perform the default event handler. As a side effect of this change, calling .trigger('click') on a link will now actually change the window's location - changed a fixture and a test to deal with this.