Yelp has released an update to its iOS social location app adding native iPad support. Yelp 5.0 is now a universal app supporting the iPhone, iPod touch and iPad, with new enhanced features for iPad users. Yelp users on the iPad have access to an advanced photo search to help users find locations by picture rather than just name or description. Users on the iPad can also now write reviews of locations from directly within the app and search for businesses…