Changes

• #52       Show 3 columns in inner pages
• #50       Allow to config setting the site to RTL (for Arabic languages)
  
• #49       Styling for infobox when no box heading
• #42       Add a new hook "navbar2" after the main navbar
• #41       Enhancement - InfoPages css override
• #39       Bug fix - Adding default hook in nas_static.php and nas_contact.php